# Nationwide opinion polling for the 2008 United States presidential election

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Scientific, nationwide public opinion polls conducted relating to the 2008 United States presidential election include:

## Presidential election
### Two-way contest: Barack Obama vs John McCain

| Poll Source | Date administered | Barack Obama | John McCain | Lead margin | Sample size | Margin of error |
| Marist College | November 3, 2008 | 52% | 43% | 9 | 804 LV | ±3.5% |
| American Research Group | November 1–3, 2008 | 53% | 45% | 8 | 1,200 LV | ±3% |
| Marist College | November 2, 2008 | 53% | 44% | 9 | 635 LV | ±4% |
| NBC News/Wall Street Journal | November 1 –2, 2008 | 51% | 43% | 8 | 1,011 LV | ±3.1% |
| Fox News/Opinion Dynamics Corporation | November 1–2, 2008 | 50% | 43% | 7 | 971 LV | ±3% |
| CBS News | October 31–November 2, 2008 | 51% | 42% | 9 | 714 LV | Not reported |
| Reuters/C-SPAN/Zogby International (Daily Tracking) | October 31–November 2, 2008 | 50.9% | 43.8% | 7.1 | Not reported | Not reported |
| Investor's Daily Business/TIPP (Daily Tracking) | October 31–November 2, 2008 | 47.5% | 43% | 4.5 | Not reported | Not reported |
| Gallup (Daily Tracking Model II) | October 31 – November 2, 2008 | 53% | 42% | 11 | 2,458 LV | ±2% |
| CNN/Opinion Research Corporation | October 30 – November 1, 2008 | 53% | 46% | 7 | 714 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 30–November 1, 2008 | 51% | 46% | 5 | 3,000 LV | ±2% |
| Pew Research Center | October 29 – November 1, 2008 | 49% | 42% | 7 | 2,587 LV | ±2.5% |
| Polimetrix/YouGov | October 18–November 1, 2008 | 51% | 45% | 6 | 31,148 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 29–31, 2008 | 51% | 44% | 7 | 876 LV | ±3.3% |
| ABC News/Washington Post (Daily Tracking) | October 28–31, 2008 | 53% | 44% | 9 | 1,896 LV | Not reported |
| Gallup (Daily Tracking Model II) | October 28–30, 2008 | 52% | 43% | 9 | 2,459 LV | ±2% |
| Reuters/CSPAN/Zogby International (Daily Tracking) | October 28–30, 2008 | 50.1% | 43.1% | 7 | 1,201 LV | ±2.9% |
| Investor's Business Daily/TIPP (Daily Tracking) | October 28–30, 2008 | 47.9% | 43.4% | 4.5 | Not reported | Not reported |
| Marist College | October 29, 2008 | 50% | 43% | 7 | 543 LV | ±4.5% |
| Fox News/Opinion Dynamics Corporation | October 28–29, 2008 | 47% | 44% | 3 | 924 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 27–29, 2008 | 51% | 46% | 5 | 3,000 LV | ±2% |
| CBS News/New York Times | October 25–29, 2008 | 52% | 41% | 11 | 1,005 LV | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 26–28, 2008 | 49% | 42% | 7 | 870 LV | ±3.3% |
| The Economist/YouGov | October 25–27, 2008 | 49% | 42% | 7 | 981 RV | Not reported |
| Gallup (Daily Tracking Model II) | October 25–27, 2008 | 51% | 44% | 7 | 2,396 LV | ±2% |
| Reuters/CSPAN/Zogby International (Daily Tracking) | October 25–27, 2008 | 49% | 44.7% | 4.3 | 1,202 LV | ±2.9% |
| ABC News/Washington Post (Daily Tracking) | October 24–27, 2008 | 52% | 45% | 7 | 1,301 LV | Not reported |
| McClatchy/Ipsos | October 23–27, 2008 | 50% | 45% | 5 | 831 LV | ±3.4% |
| Investor's Business Daily/TIPP (Daily Tracking) | October 23–27, 2008 | 46.7% | 43.7% | 3 | Not reported | Not reported |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 21–23, 26–27, 2008 | 49% | 45% | 4 | 1,000 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 24–26, 2008 | 51% | 46% | 5 | 3,000 LV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 23–25, 2008 | 50% | 42% | 8 | 878 LV | ±3.3% |
| Gallup (Daily Tracking Model II) | October 22–24, 2008 | 51% | 43% | 8 | 2,358 LV | ±2% |
| Reuters/CSPAN/Zogby International (Daily Tracking) | October 21–24, 2008 | 51.1% | 41.6% | 9.5 | 1,203 LV | ±2.9% |
| Newsweek/Princeton Survey Research Associates International | October 22–23, 2008 | 53% | 41% | 12 | 882 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 21–23, 2008 | 52% | 45% | 7 | 3,000 LV | ±2% |
| ABC News/Washington Post (Daily Tracking) | October 20–23, 2008 | 53% | 44% | 9 | 1,321 LV | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 20–22, 2008 | 48% | 43% | 5 | 769 LV | ±3.5% |
| CBS News/New York Times | October 19–22, 2008 | 54% | 41% | 13 | 771 LV | Not reported |
| Big Ten | October 19–22, 2008 | 52% | 43% | 9 | 1,014 LV | Not reported |
| Investors Business Daily/TIPP (Daily Tracking) | October 18–22, 2008 | 44.8% | 43.7% | 1.1 | 1,072 LV | ±3% |
| The Economist/YouGov | October 20–21, 2008 | 49% | 41% | 8 | 998 RV | ±4% |
| Fox News/Opinion Dynamics Corporation | October 20–21, 2008 | 49% | 40% | 9 | 936 LV | ±3% |
| Gallup (Daily Tracking Model II) | October 19–21, 2008 | 52% | 44% | 8 | 2,420 LV | ±2% |
| Reuters/CSPAN/Zogby International (Daily Tracking) | October 18–20, 2008 | 50.3% | 42.4% | 7.9 | 1,214 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 18–20, 2008 | 50% | 46% | 4 | 3,000 LV | ±2% |
| American Research Group | October 18–20, 2008 | 49% | 45% | 4 | 1,200 LV | ±3% |
| NBC News/Wall Street Journal | October 17–20, 2008 | 52% | 42% | 10 | 1,159 RV | ±2.9% |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 14–16, 19–20, 2008 | 48% | 47% | 1 | 1,000 LV | ±3.1% |
| CNN/Opinion Research Corporation | October 17–19, 2008 | 51% | 46% | 5 | 746 LV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 17–19, 2008 | 47% | 42% | 7 | 789 LV | ±3.5% |
| Pew Research Center | October 16–19, 2008 | 53% | 39% | 14 | 2,382 LV | ±2.5% |
| ABC News/Washington Post (Daily Tracking) | October 16–19, 2008 | 53% | 44% | 9 | 1,366 LV | Not reported |
| Hearst-Argyle/Franklin & Marshall College | October 13–19, 2008 | 50% | 45% | 5 | Not reported | ±3.5% |
| Gallup (Daily Tracking Model II) | October 16–18, 2008 | 51% | 44% | 7 | 2,590 LV | ±2% |
| Reuters/C-SPAN/Zogby International (Daily Tracking) | October 15–17, 2008 | 48.3% | 44.4% | 3.9 | 1,209 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 15–17, 2008 | 50% | 45% | 5 | 3,000 LV | ±2% |
| Investor's Business Daily/TIPP (Daily Tracking) | October 13–17, 2008 | 47.2% | 39.8% | 7.4 | Not reported | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 14–16, 2008 | 50% | 40% | 10 | 804 LV | ±3.5% |
| Gallup (Daily Tracking Model II) | October 13–15, 2008 | 51% | 45% | 6 | 2,312 LV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 12–14, 2008 | 50% | 45% | 5 | 3,000 LV | ±2% |
| Reuters/C-SPAN/Zogby International (Daily Tracking) | October 11–14, 2008 | 48.2% | 44.4% | 3.8 | 1,210 LV | ±2.9% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | October 11–13, 2008 | 48% | 42% | 6 | 829 LV | ±3.4% |
| American Research Group | October 11–13, 2008 | 50% | 45% | 5 | 1,200 LV | ±3% |
| Los Angeles Times/Bloomberg | October 10–13, 2008 | 50% | 41% | 9 | 1,030 LV | ±3% |
| CBS News/New York Times | October 10–13, 2008 | 53% | 39% | 14 | 699 LV | Not reported |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 8–9, 12–13, 2008 | 53% | 40% | 13 | 800 LV | ±3.5% |
| The Economist/YouGov | October 11–12, 2008 | 48% | 42% | 6 | 998 RV | ±4% |
| USA Today/Gallup (Model II) | October 10–12, 2008 | 52% | 45% | 7 | 1,030 LV | ±3% |
| Pew Research Center | October 9–12, 2008 | 49% | 42% | 7 | 1,191 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | October 8−12, 2008 | 51% | 42% | 9 | 1,000 LV | Not reported |
| Investor's Business Daily/TIPP (Daily Tracking) | October 6–12, 2008 | 44.8% | 42.7% | 2.1 | 825 LV | ±3.3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 9–11, 2008 | 51% | 45% | 6 | 3,000 LV | ±2% |
| ABC News/Washington Post | October 8–11, 2008 | 53% | 43% | 10 | 766 LV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | October 8–10, 2008 | 50% | 40% | 10 | 808 LV | ±3.5% |
| Reuters/C-SPAN/Zogby International (Daily Tracking) | October 7–10, 2008 | 47.6% | 43.8% | 3.8 | 1,208 LV | ±2.9% |
| Newsweek/Princeton Survey Research Associates International | October 8–9, 2008 | 52% | 41% | 11 | 1,035 RV | ±3.7% |
| Fox News/Opinion Dynamics Corporation | October 8–9, 2008 | 46% | 39% | 7 | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 6–8, 2008 | 50% | 45% | 5 | 3,000 LV | ±2% |
| Diageo/The Hotline/Financial Dynamics | October 5–7, 2008 | 45% | 44% | 1 | 904 LV | ±3.3% |
| Gallup (Daily Tracking) | October 5–7, 2008 | 52% | 41% | 11 | 2,747 RV | ±2% |
| George Washington University/Tarrance Group/Lake Research Partners | October 2, 5–7, 2008 | 49% | 45% | 4 | 800 LV | ±3.5% |
| The Economist/YouGov | October 4–6, 2008 | 46% | 43% | 3 | 999 RV | ±4% |
| Reuters/C-SPAN/Zogby International (Daily Tracking) | October 4–6, 2008 | 47.7% | 45.3% | 2.4 | 1,237 LV | ±2.8% |
| American Research Group | October 4–6, 2008 | 49% | 45% | 4 | 1,200 LV | ±3% |
| Time/Schulman, Bucuvalas, & Ronca Inc. (SRBI) | October 3–6, 2008 | 50% | 44% | 6 | 1,053 LV | ±3% |
| NBC News/Wall Street Journal | October 4–5, 2008 | 49% | 43% | 6 | 658 RV | ±3.8% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | October 3–5, 2008 | 52% | 44% | 8 | 3,000 LV | ±2% |
| CBS News | October 3–5, 2008 | 48% | 45% | 3 | 616 LV | Not reported |
| CNN/Opinion Research Corporation | October 3–5, 2008 | 53% | 45% | 8 | 694 LV | ±3.5% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | October 1–5, 2008 | 48% | 45% | 3 | 1,000 LV | Not reported |
| Diageo/The Hotline/Financial Dynamics | October 2–4, 2008 | 48% | 41% | 7 | 915 LV | ±3.2% |
| Gallup (Daily Tracking) | October 2–4, 2008 | 50% | 43% | 7 | 2,728 RV | ±2% |
| Zogby Interactive | October 2–3, 2008 | 48.4% | 43.8% | 4.6 | 2,873 LV | ±1.9% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 30–October 2, 2008 | 51% | 44% | 7 | 3,000 LV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 29–October 1, 2008 | 47% | 42% | 5 | 908 RV | ±3.3% |
| Gallup (Daily Tracking) | September 29–October 1, 2009 | 48% | 43% | 5 | 2,747 RV | ±2% |
| George Washington University/Tarrance Group/Lake Research Partners | September 28–October 1, 2008 | 49% | 44% | 5 | 800 LV | ±3.5% |
| Marist College | September 28–30, 2008 | 49% | 44% | 5 | 943 LV | ±3.5% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | September 28–30, 2008 | 49% | 45% | 4 | 1,000 LV | Not reported |
| CBS News | September 27–30, 2008 | 50% | 41% | 9 | 769 LV | Not reported |
| Associated Press/GfK Group/Roper | September 27–30, 2008 | 48% | 41% | 7 | 808 LV | ±3.4% |
| American Research Group | September 27–29, 2008 | 49% | 45% | 4 | 1,200 LV | ±3% |
| ABC News/Washington Post | September 27–29, 2008 | 50% | 46% | 4 | 916 LV | ±3% |
| Pew Research Center | September 27–29, 2008 | 49% | 43% | 6 | 1,181 LV | ±4% |
| The Economist/Polimetrix/YouGov | September 27–29, 2008 | 47% | 42% | 5 | 988 RV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 27–29, 2008 | 51% | 45% | 6 | 3,000 LV | ±2% |
| Time/Schulman, Bucuvalas, & Ronca Inc. (SRBI) | September 26–29, 2008 | 50% | 43% | 7 | 1,133 LV | ±3% |
| McClatchy/Ipsos | September 26–29, 2008 | 48% | 45% | 3 | 1,007 RV | ±3.1% |
| Gallup (Daily Tracking) | September 26–28, 2008 | 50% | 42% | 8 | 2,732 RV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 26–28, 2008 | 47% | 42% | 5 | 903 RV | ±3.3% |
| Zogby Interactive | September 26–27, 2008 | 47.1% | 45.9% | 1.2 | 2,102 LV | ±2.2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 24–26, 2008 | 50% | 44% | 6 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | September 23–25, 2008 | 48% | 45% | 3 | 2,736 RV | ±2% |
| Zogby Interactive | September 23–25, 2008 | 43.8% | 45.8% | 2 | 4,752 LV | ±1.5% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 23–25, 2008 | 49% | 42% | 7 | 913 RV | ±3.2% |
| George Washington University/Tarrance Group/Lake Research Partners | September 21–25, 2008 | 46% | 48% | 2 | 1,000 LV | ±3.1% |
| CBS News/New York Times | September 22–24, 2008 | 48% | 43% | 5 | Not reported | Not reported |
| The Economist/Polimetrix/YouGov | September 22–24, 2008 | 46% | 43% | 3 | 985 RV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | September 22−24, 2008 | 47% | 44% | 3 | 1,007 | Not reported |
| Marist College | September 22–23, 2008 | 49% | 44% | 5 | 698 LV | ±4% |
| Fox News/Opinion Dynamics Corporation | September 22–23, 2008 | 45% | 39% | 6 | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 21–23, 2008 | 49% | 47% | 2 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | September 20–22, 2008 | 47% | 44% | 3 | 2,740 RV | ±2% |
| American Research Group | September 20–22, 2008 | 48% | 46% | 2 | 1,200 LV | ±3% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 20–22, 2008 | 47% | 43% | 4 | 906 RV | ±3.3% |
| NBC News/Wall Street Journal | September 20–22, 2008 | 48% | 46% | 2 | 1,085 RV | ±3.0% |
| Los Angeles Times/Bloomberg | September 19–22, 2008 | 49% | 45% | 4 | 838 LV | Not reported |
| ABC News/Washington Post | September 19–22, 2008 | 52% | 43% | 9 | 780 LV | Not reported |
| McClatchy/Ipsos | September 18–22, 2008 | 44% | 43% | 1 | 923 RV | ±3.2% |
| CNN/Opinion Research Corporation | September 19–21, 2008 | 51% | 47% | 4 | 697 LV | Not reported |
| Hearst-Argyle/Franklin & Marshall College | September 15–21, 2008 | 45% | 47% | 2 | 1,320 RV | ±2.7% |
| Zogby Interactive | September 19–20, 2008 | 46.8% | 43.4% | 3.4 | 2,331 LV | ±2.1% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 18–20, 2008 | 47% | 46% | 1 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | September 17–19, 2008 | 50% | 44% | 6 | 2,756 RV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 17–19, 2008 | 45% | 44% | 1 | 922 RV | ±3.2% |
| George Washington University/Tarrance Group/Lake Research Partners | September 11, 14, 17–18, 2008 | 47% | 47% | Tied | 800 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 15–17, 2008 | 48% | 48% | Tied | 3,000 LV | ±2% |
| Big Ten | September 14–17, 2008 | 46% | 45.1% | 0.9 | 1,114 RV | ±3% |
| The Economist/Polimetrix/YouGov | September 15–16, 2008 | 43% | 45% | 2 | 917 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 14–16, 2008 | 45% | 42% | 3 | 913 RV | ±3.2% |
| Gallup (Daily Tracking) | September 14–16, 2008 | 47% | 45% | 2 | 2,787 RV | ±2% |
| CBS News/New York Times | September 12–16, 2008 | 49% | 44% | 5 | Not reported | Not reported |
| American Research Group | September 13–15, 2008 | 45% | 48% | 3 | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 12–14, 2008 | 47% | 49% | 2 | 3,000 LV | ±2% |
| Pew Research Center | September 9–14, 2008 | 46% | 46% | Tied | 2,307 LV | Not reported |
| Gallup (Daily Tracking) | September 11–13, 2008 | 45% | 47% | 2 | 2,787 RV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 11–13, 2002 | 45% | 43% | 2 | 904 RV | ±3.3% |
| Reuters/Zogby International | September 11–13, 2008 | 47% | 45% | 2 | 1,008 LV | ±3.1% |
| Newsweek/Princeton Survey Research Associates International | September 10–11, 2008 | 46% | 46% | Tied | 1,038 RV | ±3.8% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 9–11, 2008 | 46% | 49% | 3 | 3,000 LV | ±2% |
| George Washington University/Tarrance Group/Lake Research Partners | September 7–11, 2008 | 44% | 48% | 4 | 1,000 LV | ±3.1% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking)) | September 8–10, 2008 | 44% | 46% | 2 | 918 RV | ±3.2% |
| Gallup (Daily Tracking) | September 8–10, 2008 | 44% | 48% | 4 | 2,718 RV | ±2% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | September 5–10, 2008 | 46% | 48% | 2 | 1,000 LV | Not reported |
| Associated Press/GfK Group/Roper | September 5–10, 2008 | 44% | 48% | 4 | 812 LV | ±3.4% |
| Fox News/Opinion Dynamics Corporation | September 8–9, 2008 | 42% | 45% | 3 | 900 RV | ±3% |
| The Economist/Polimetrix/YouGov | September 7–9, 2008 | 41% | 40% | 1 | 877 RV | Not reported |
| McClatchy/Ipsos | September 5–9, 2008 | 45% | 46% | 1 | 876 RV | ±3.3% |
| Poll Position/InsiderAdvantage | September 8, 2008 | 46% | 46% | Tied | 807 LV | ±3.36% |
| NBC News/Wall Street Journal | September 6–8, 2008 | 47% | 46% | 1 | 860 RV | ±3.3% |
| American Research Group | September 6–8, 2008 | 47% | 46% | 1 | 1,200 LV | ±3% |
| Public Opinion Strategies (R) | September 6–8, 2008 | 43% | 46% | 3 | 800 LV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 6–8, 2008 | 48% | 48% | Tied | 3,000 LV | ±2% |
| USA Today/Gallup | September 5–7, 2008 | 44% | 54% | 10 | 823 LV | ±4.0% |
| ABC News/Washington Post | September 5–7, 2008 | 47% | 49% | 2 | Not reported | Not reported |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 5–7, 2008 | 44% | 44% | Tied | 924 RV | ±3.2% |
| CNN/Opinion Research Corporation | September 5–7, 2008 | 48% | 48% | Tied | 942 RV | ±3% |
| Investor's Business Daily/TIPP | September 2–7, 2008 | 45% | 40% | 5 | 868 RV | ±3.3% |
| Gallup (Daily Tracking) | September 4–6, 2008 | 45% | 48% | 3 | 2,765 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | September 3–5, 2008 | 49% | 46% | 3 | 3,000 LV | ±2% |
| Diageo/The Hotline/Financial Dynamics (Daily Tracking) | September 2–4, 2008 | 46% | 40% | 6 | 916 RV | ±3.2% |
| CBS News | September 1–3, 2008 | 42% | 42% | Tied | 734 RV | ±4% |
| The Economist/Polimetrix/YouGov | September 1−3, 2008 | 42% | 39% | 3 | 883 RV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | September 1–3, 2008 | 49% | 44% | 5 | 1,000 LV | Not reported |
| Gallup (Daily Tracking) | September 1–3, 2008 | 49% | 42% | 7 | 2,771 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 31–September 2, 2008 | 50% | 45% | 5 | 3,000 LV | ±2% |
| American Research Group | August 30–September 1, 2008 | 49% | 43% | 6 | 1,200 LV | ±3% |
| USA Today/Gallup | August 30–31, 2008 | 50% | 43% | 7 | 1,835 RV | ±3% |
| Diageo/The Hotline/Financial Dynamics | August 29–31, 2008 | 48% | 39% | 9 | 805 RV | ±3.5% |
| CNN/Opinion Research Corporation | August 29–31, 2008 | 49% | 48% | 1 | 927 RV | ±3% |
| CBS News | August 29–31, 2008 | 48% | 40% | 8 | 781 RV | ±4% |
| Zogby Interactive | August 29–30, 2008 | 44.6% | 47.1% | 2.5 | 2,020 LV | ±2.2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 28–30, 2008 | 49% | 46% | 3 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | August 27–29, 2008 | 49% | 41% | 8 | 2,709 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 25–27, 2008 | 47% | 47% | Tied | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | August 25–26, 2008 | 41% | 36% | 5 | 847 RV | Not reported |
| Gallup (Daily Tracking) | August 24–26, 2008 | 45% | 44% | 1 | 2,724 RV | ±2% |
| CNN/Opinion Research Corporation | August 23–24, 2008 | 47% | 47% | Tied | 909 RV | ±3.5% |
| Zogby Interactive | August 23–24, 2008 | 46% | 44% | 2 | 2,248 LV | ±2.1% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 22–24, 2008 | 48% | 45% | 3 | 3,000 LV | ±2% |
| Diageo/The Hotline/Financial Dynamics | August 18–24, 2008 | 44% | 40% | 4 | 1,022 RV | ±3% |
| USA Today/Gallup | August 21–23, 2008 | 48% | 45% | 3 | 765 LV | ±4% |
| ABC News/Washington Post | August 19–22, 2008 | 49% | 45% | 4 | Not reported | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 19–21, 2008 | 47% | 46% | 1 | 3,000 LV | ±2% |
| Fox News/Opinion Dynamics Corporation | August 19–20, 2008 | 42% | 39% | 3 | 900 RV | ±3% |
| The Economist/Polimetrix/YouGov | August 18–20, 2008 | 39% | 38% | 1 | 915 RV | Not reported |
| Gallup (Daily Tracking) | August 17–19, 2008 | 45% | 43% | 2 | 2,658 RV | ±2% |
| CBS News/New York Times | August 15–19, 2008 | 45% | 42% | 3 | 869 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 16–18, 2008 | 47% | 45% | 2 | 3,000 LV | ±2% |
| Los Angeles Times/Bloomberg | August 15–18, 2008 | 45% | 43% | 2 | 1,248 RV | Not reported |
| NBC News/Wall Street Journal | August 15–18, 2008 | 45% | 42% | 3 | 1,005 RV | ±3.1% |
| Quinnipiac University | August 12–17, 2008 | 47% | 42% | 5 | 1,547 LV | ±2.5% |
| Reuters/Zogby International | August 14–16, 2008 | 41% | 46% | 5 | 1,089 LV | ±3.0% |
| Gallup (Daily Tracking) | August 14–16, 2008 | 45% | 45% | 1 | 2,671 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 13–15, 2008 | 46% | 45% | 1 | 3,000 LV | ±2% |
| George Washington University/Tarrance Group/Lake Research Partners | August 10–14, 2008 | 46% | 47% | 1 | 1,000 LV | ±3.1% |
| The Economist/Polimetrix/YouGov | August 11–13, 2008 | 41% | 40% | 1 | 908 RV | Not reported |
| Gallup (Daily Tracking) | August 11–13, 2008 | 46% | 43% | 3 | 2,673 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research Center (Daily Tracking) | August 10–12, 2008 | 48% | 46% | 2 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | August 8–10, 2008 | 47% | 42% | 5 | 2,648 RV | ±2% |
| Pew Research Center | July 31–August 10, 2008 | 47% | 42% | 5 | 2,414 RV | ±2.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 7–9, 2008 | 48% | 46% | 2 | 3,000 LV | ±2% |
| Investor's Business Daily/TIPP | August 4–9, 2008 | 43% | 38% | 5 | 925 RV | Not reported |
| Gallup (Daily Tracking) | August 5–7, 2008 | 46% | 43% | 3 | 2,718 RV | ±2% |
| Harris Interactive | August 1–7, 2008 | 47% | 38% | 9 | 2,488 RV | Not reported |
| Sacred Heart University | July 28–August 7, 2008 | 37.8% | 27% | 10.8 | 800 A | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 4–6, 2008 | 47% | 46% | 1 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | August 4–6, 2008 | 42% | 39% | 3 | 922 RV | Not reported |
| CBS News | July 31–August 5, 2008 | 45% | 39% | 6 | 851 RV | Not reported |
| Gallup (Daily Tracking) | August 2–4, 2008 | 47% | 43% | 4 | 2,674 RV | ±2% |
| Associated Press/Ipsos | July 31–August 4, 2008 | 48% | 42% | 6 | 833 RV | ±3.4% |
| Time/Schulman, Bucuvalas, & Ronca Inc. (SRBI) | July 31–August 4, 2008 | 46% | 41% | 5 | 808 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | August 1–3, 2008 | 46% | 47% | 1 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | July 31–August 1, 2008 | 45% | 44% | 1 | 2,684 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 29–31, 2008 | 47% | 46% | 1 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | July 28–30, 2008 | 45% | 44% | 1 | 2,679 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 26–28, 2008 | 47% | 46% | 1 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | July 26–27, 2008 | 44% | 37% | 7 | 932 RV | Not reported |
| CNN/Opinion Research Corporation | July 25–27, 2008 | 51% | 44% | 7 | 914 RV | ±3% |
| USA Today/Gallup | July 25–27, 2008 | 45% | 49% | 4 | 791 LV | ±4% |
| Pew Research Center | July 23–27, 2008 | 47% | 42% | 5 | 1,241 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 23–25, 2008 | 49% | 43% | 6 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | July 22–24, 2008 | 41% | 38% | 3 | 921 RV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | July 21–24, 2008 | 50% | 45% | 6 | 1,004 LV | Not reported |
| Fox News/Opinion Dynamics Corporation | July 22–23, 2008 | 41% | 40% | 1 | 900 RV | ±3% |
| Gallup (Daily Tracking) | July 21–23, 2008 | 45% | 43% | 2 | 2,660 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 20–22, 2008 | 47% | 45% | 2 | 3,000 LV | ±2% |
| NBC News/Wall Street Journal | July 18–21, 2008 | 47% | 41% | 6 | 1,003 RV | ±3.1% |
| Gallup (Daily Tracking) | July 18–20, 2008 | 47% | 41% | 6 | 2,653 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 17–19, 2008 | 47% | 45% | 2 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | July 15–17, 2008 | 41% | 36% | 5 | 999 A | ±4% |
| Gallup (Daily Tracking) | July 15–17, 2008 | 45% | 44% | 1 | 2,641 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 14–16, 2008 | 46% | 46% | Tied | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | July 12–14, 2008 | 47% | 43% | 4 | 2,637 RV | ±2% |
| CBS News/New York Times | July 7–14, 2008 | 45% | 39% | 6 | 1,462 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 11–13, 2008 | 46% | 43% | 3 | 3,000 LV | ±2% |
| ABC News/Washington Post | July 10–13, 2008 | 49% | 46% | 3 | Not reported | Not reported |
| Reuters/Zogby International | July 9–13, 2008 | 47% | 40% | 7 | 1,039 LV | ±3.1% |
| Quinnipiac University | July 8–13, 2008 | 50% | 41% | 9 | 1,725 LV | ±2.4% |
| Gallup (Daily Tracking) | July 9–11, 2008 | 47% | 43% | 4 | 2,641 RV | ±2% |
| Investor's Business Daily/TIPP | July 7–11, 2008 | 40% | 37% | 3 | 854 RV | Not reported |
| Harris Interactive | July 3–11, 2008 | 44% | 35% | 9 | Not reported | Not reported |
| Newsweek/Princeton Survey Research Associates International | July 9–10, 2008 | 44% | 41% | 3 | 1,037 RV | ±3.6% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 8–10, 2008 | 47% | 45% | 2 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | July 7–9, 2008 | 39% | 38% | 1 | 997 A | ±4% |
| Gallup (Daily Tracking) | July 6–8, 2008 | 46% | 44% | 2 | 2,666 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | July 2, 6–7, 2008 | 49% | 43% | 6 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | July 2–3, 5, 2008 | 48% | 42% | 6 | 2,620 RV | ±2% |
| The Economist/Polimetrix/YouGov | July 1–2, 2008 | 37% | 34% | 3 | 998 A | ±4% |
| Gallup (Daily Tracking) | June 30–July 2, 2008 | 47% | 43% | 4 | 2,641 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 29–July 1, 2008 | 49% | 44% | 5 | 3,000 LV | ±2% |
| CNN/Opinion Research Corporation | June 26–29, 2008 | 50% | 45% | 5 | 906 RV | ±3.5% |
| McLaughlin & Associates | June 26–29, 2008 | 46% | 38% | 8 | 1,000 LV | ±3.1% |
| Gallup (Daily Tracking) | June 26, 28–29, 2008 | 46% | 42% | 4 | 2,656 RV | ±2% |
| Pew Research Center | June 18–29, 2008 | 48% | 40% | 8 | 1,574 RV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 26–28, 2008 | 49% | 43% | 6 | 3,000 LV | ±2% |
| The Economist/Polimetrix/YouGov | June 23–25, 2008 | 36% | 34% | 2 | 991 A | ±4% |
| Gallup (Daily Tracking) | June 23–25, 2008 | 44% | 44% | Tied | 2,605 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 23–25, 2008 | 49% | 45% | 4 | 3,000 LV | ±2% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | June 22–25, 2008 | 49% | 45% | 4 | 2,000 LV | Not reported |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | June 18−25, 2008 | 47% | 43% | 4 | 803 LV | ±3% |
| Los Angeles Times/Bloomberg | June 19–23, 2008 | 49% | 37% | 12 | 1,115 RV | ±3% |
| Associated Press/Yahoo News/Knowledge Networks | June 13–23, 2008 | 40% | 39% | 1 | 1,507 RV | ±2.5% |
| Gallup (Daily Tracking) | June 20–22, 2008 | 46% | 43% | 3 | 2,608 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 20–22, 2008 | 49% | 43% | 5 | 3,000 LV | ±2% |
| Hearst-Argyle/Franklin & Marshall College | June 15–22, 2008 | 42% | 36% | 6 | 1,501 RV | ±2.5% |
| Newsweek/Princeton Survey Research Associates International | June 18–19, 2008 | 51% | 36% | 15 | 896 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | June 17–19, 2008 | 48% | 44% | 4 | 3,000 LV | ±2% |
| USA Today/Gallup | June 15–19, 2008 | 50% | 44% | 6 | 1,310 LV | ±3% |
| Fox News/Opinion Dynamics | June 17–18, 2008 | 45% | 41% | 4 | 900 RV | ±3% |
| The Economist/Polimetrix/YouGov | June 16–17, 2008 | 37% | 34% | 3 | 1,000 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 14–16, 2008 | 48% | 44% | 4 | 3,000 LV | ±2% |
| ABC News/Washington Post | June 12–15, 2008 | 49% | 45% | 3 | Not reported | Not reported |
| Reuters/Zogby International | June 12–14, 2008 | 47% | 42% | 5 | 1,113 LV | ±3.0% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 11–13, 2008 | 49% | 43% | 6 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | June 10, 12–13, 2008 | 45% | 42% | 3 | 2,691 RV | ±2% |
| Harris Interactive | June 5–13, 2008 | 44% | 33% | 11 | Not reported | Not reported |
| The Economist/Polimetrix/YouGov | June 10–11, 2008 | 37% | 33% | 4 | 996 A | ±4% |
| Ipsos | June 5–11, 2008 | 50% | 43% | 7 | 467 LV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 8–10, 2008 | 49% | 44% | 5 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | June 7–9, 2008 | 48% | 41% | 7 | 2,633 RV | ±2% |
| NBC News/Wall Street Journal | June 6–9, 2008 | 47% | 41% | 6 | 1,000 RV | ±3.1% |
| Diageo/The Hotline/Financial Dynamics | June 5–8, 2008 | 44% | 42% | 2 | 806 RV | ±3.5% |
| Investor's Business Daily/TIPP | June 2–8, 2008 | 42.5% | 40.4% | 2.1 | 916 RV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 5–7, 2008 | 50% | 43% | 7 | 3,000 LV | ±2% |
| Gallup (Daily Tracking) | June 2–6, 2008 | 46% | 45% | 1 | 4,408 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | June 2–4, 2008 | 47% | 45% | 2 | 3,000 LV | ±2% |
| Cook Political Report/RT Strategies | May 29–31, 2008 | 44% | 43% | 1 | 802 RV | ±3.5% |
| Lombardo Consulting Group | May 26–28, 2008 | 44% | 40% | 4 | 1,000 RV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | May 19–26, 2008 | 47% | 47% | Tied | 1,600 LV | Not reported |
Three-way contest
| Poll Source | Date | Barack Obama (D) | John McCain (R) | Ralph Nader (I) | Sample size | Margin of error |
| McClatchy/Ipsos | October 30–November 1, 2008 | 50% | 42% | 1% | 760 LV | ±3.6% |
| Associated Press/Yahoo News/Knowledge Networks | June 13–23, 2008 | 40% | 39% | 3% | 1,507 RV | ±2.5% |

### Four-way contest

| Poll Source | Date | Barack Obama (D) | John McCain (R) | Bob Barr (L) | Ralph Nader (I) | Sample size | Margin of error |
| Tarrance Group | November 2–3, 2008 | 50.2% | 48.3% | 0.9% | 0.6% | 800 LV | ±3.5% |
| Lake Research Partners | November 2–3, 2008 | 51.5% | 46.5% | 1% | 1% | 800 LV | ±3.5% |
| Harris Interactive | October 30–November 3, 2008 | 52% | 44% | 1% | 1% | 3,946 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | October 30–November 2, 2008 | 51% | 44% | 2% | 1% | 1,000 LV | Not reported |
| McClatchy/Ipsos | October 23–27, 2008 | 48% | 42% | 1% | 1% | 831 LV | ±3.4% |
| Harris Interactive | October 20–27, 2008 | 50% | 44% | 1% | 2% | 1,590 LV | Not reported |
| Associated Press/Yahoo News/Knowledge Networks | October 17–27, 2008 | 51% | 43% | 1% | 2% | Not reported | Not reported |
| Pew Research Center | October 23−26, 2008 | 53% | 38% | 0% | 2% | 1,198 LV | ±3.5% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | October 21–23, 2008 | 52% | 43% | 1% | 2% | 1,000 LV | Not reported |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 16, 19–22, 2008 | 48% | 45% | 1% | 2% | 1,000 LV | ±3.5% |
| Harris Interactive | October 16–20, 2008 | 50% | 44% | 1% | 1% | 1,390 LV | Not reported |
| Associated Press/GfK Group/Roper | October 16–20, 2008 | 44% | 43% | 1% | 1% | 800 LV | ±3.5% |
| McClatchy/Ipsos | October 16–20, 2008 | 50% | 42% | 0% | 1% | 773 LV | ±3.5% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | October 15–19, 2008 | 49% | 44% | 2% | 3% | 1,000 LV | Not reported |
| McClatchy/Ipsos | October 9–13, 2008 | 48% | 39% | 1% | 2% | 1,036 RV | ±3.0% |
| Associated Press/Yahoo News/Knowledge Networks | October 3–13, 2008 | 49% | 44% | 1% | 1% | 1,528 LV | ±2.5% |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 6–9, 2008 | 51% | 41% | 1% | 2% | 800 LV | ±3.5% |
| McClatchy/Ipsos | October 2–6, 2008 | 47% | 40% | 1% | 3% | 858 RV | ±3.3% |
| George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking) | October 2–5, 2008 | 48% | 44% | 1% | 2% | 800 LV | ±3.5% |
| Associated Press/GfK Group/Roper | September 27–30, 2008 | 48% | 41% | 1% | 2% | 808 LV | ±3.4% |
| McClatchy/Ipsos | September 26–29, 2008 | 46% | 42% | 1% | 2% | 1,007 RV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Partners | September 21–25, 2008 | 45% | 47% | 1% | 2% | 1,000 LV | ±3.1% |
| Harris Interactive | September 15–22, 2008 | 47% | 46% | 1% | 2% | 1,590 LV | Not reported |
| McClatchy/Ipsos | September 11–15, 2008 | 45% | 45% | 1% | 2% | 1,046 RV | ±3% |
| Associated Press/Yahoo News/Knowledge Networks | September 5–15, 2008 | 42% | 44% | 1% | 2% | 1,546 RV | ±2.5% |
| Reuters/Zogby International | September 11–13, 2008 | 45% | 45% | 1-2% | 1-2% | 1,008 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Partners | September 7−11, 2008 | 44% | 48% | 1% | 1% | 1,000 LV | ±3.1% |
| Associated Press/GfK Group/Roper | September 5–10, 2008 | 44% | 48% | 1% | 1% | 812 LV | ±3.4% |
| Associated Press/Yahoo News/Stanford University/Knowledge Networks | August 27–September 5, 2008 | 43% | 39% | 1% | 2% | 1,728 RV | ±2.4% |
| Zogby Interactive | August 29–30, 2008 | 44% | 43% | 5% | 2% | 2,020 LV | ±2.2% |
| Reuters/Zogby International | August 14–16, 2008 | 39% | 44% | 3% | 2% | 1,089 LV | ±3.0% |
| Zogby Interactive | August 12–14, 2008 | 43% | 40% | 6% | 2% | 3,339 LV | ±1.7% |
| Associated Press/Ipsos | July 31–August 4, 2008 | 47% | 41% | 2% | 3% | 833 RV | ±3.4% |
| Associated TV/Zogby International | July 31–August 1, 2008 | 41% | 42% | 2% | 2% | 1,011 LV | ±3.1% |
| Fox News/Opinion Dynamics Corporation | July 22–23, 2008 | 40% | 37% | 0% | 2% | 900 RV | ±3% |
| ABC News/Washington Post | July 10–13, 2008 | 49% | 39% | 2% | 5% | Not reported | Not reported |
| Reuters/Zogby International | July 9–13, 2008 | 46% | 36% | 3% | 3% | 1,039 LV | ±3,1% |
| Los Angeles Times/Bloomberg | June 19–23, 2008 | 48% | 33% | Bob Barr | 4% | Ralph Nader | 3% | 1,115 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | June 17–18, 2008 | 42% | 39% | 2% | 4% | 900 RV | ±3% |
| ABC News/Washington Post | June 12–15, 2008 | 49% | 39% | 2% | 5% | Not reported | Not reported |
| CNN/Opinion Research Corporation | June 4–5, 2008 | 47% | 43% | 2% | 6% | 921 RV | ±3% |

### Five-way contest

| Poll Source | Date | Barack Obama (D) | John McCain (R) | Bob Barr (L) | Cynthia McKinney (G) | Ralph Nader (I) | Sample size | Margin of error |
| CNN/Opinion Research Corporation | October 30–November 1, 2008 | 51% | 43% | 1% | 1% | 2% | 714 LV | ±3.5% |
| Zogby Interactive | Sept. 26–27, 2008 | 46.4% | 43.4% | 3.7% | 0.6% | 1.0% | 2,102 LV | ±2.2% |
| CNN/Opinion Research Corporation | Sept. 19–21, 2008 | 48% | 45% | 1% | 1% | 4% | 909 RV | ±3% |
| Zogby Interactive | August 23–24, 2008 | 45% | 43% | 4% | 1% | 1% | 2,248 LV | ±2.1% |

## Earlier polls
### Two-way contest

Related article: Graphical Representations of Two-Way Contest Data

#### Democratic nominee vs. Republican nominee

| Poll Source | Date administered | Democrat | % | Republican | % | Sample size | Margin of error |
| CNN/Opinion Research Corporation | June 4–5, 2008 | Hillary Clinton | 49% | John McCain | 48% | 921 RV | ±3% |
| CNN/Opinion Research Corporation | June 4–5, 2008 | Barack Obama | 49% | John McCain | 46% | 921 RV | ±3% |
| CBS News | May 30–June 3, 2008 | Hillary Clinton | 50% | John McCain | 41% | 930 RV | ±4% |
| CBS News | May 30–June 3, 2008 | Barack Obama | 48% | John McCain | 42% | 930 RV | ±4% |
| USA Today/Gallup | May 30–June 1, 2008 | Hillary Clinton | 48% | John McCain | 44% | 803 LV | ±4% |
| USA Today/Gallup | May 30–June 1, 2008 | Barack Obama | 49% | John McCain | 44% | 803 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 29–June 1, 2008 | Hillary Clinton | 44% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 29–June 1, 2008 | Barack Obama | 45% | John McCain | 45% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | May 24–25, 27–29, 2008 | Hillary Clinton | 47% | John McCain | 45% | 4,368 RV | ±2% |
| Gallup (Daily Tracking) | May 24–25, 27–29, 2008 | Barack Obama | 46% | John McCain | 45% | 4,368 RV | ±2% |
| The Economist/Polimetrix/YouGov | May 27–28, 2008 | Hillary Clinton | 42% | John McCain | 44% | 997 A | ±4% |
| The Economist/Polimetrix/YouGov | May 27–28, 2008 | Barack Obama | 38% | John McCain | 48% | 995 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 25–28, 2008 | Hillary Clinton | 46% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 25–28, 2008 | Barack Obama | 42% | John McCain | 47% | 1,600 LV | ±3% |
| Pew Research Center | May 21–25, 2008 | Hillary Clinton | 48% | John McCain | 44% | 1,242 RV | ±3.5% |
| Pew Research Center | May 21–25, 2008 | Barack Obama | 47% | John McCain | 44% | 1,242 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 21–24, 2008 | Hillary Clinton | 47% | John McCain | 44% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 21–24, 2008 | Barack Obama | 44% | John McCain | 46% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | May 19–23, 2008 | Hillary Clinton | 49% | John McCain | 45% | 4,460 RV | ±2% |
| Gallup (Daily Tracking) | May 19–23, 2008 | Barack Obama | 45% | John McCain | 46% | 4,460 RV | ±2% |
| Newsweek/Princeton Survey Research Associates International | May 21–22, 2008 | Hillary Clinton | 48% | John McCain | 44% | 1,205 RV | ±3.5% |
| Newsweek/Princeton Survey Research Associates International | May 21–22, 2008 | Barack Obama | 46% | John McCain | 46% | 1,205 RV | ±3.5% |
| The Economist/Polimetrix/YouGov | May 20–21, 2008 | Hillary Clinton | 45% | John McCain | 40% | 994 A | ±4% |
| The Economist/Polimetrix/YouGov | May 20–21, 2008 | Barack Obama | 43% | John McCain | 41% | 998 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 17–20, 2008 | Hillary Clinton | 45% | John McCain | 45% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 17–20, 2008 | Barack Obama | 44% | John McCain | 45% | 1,600 LV | ±3% |
| Harris Interactive | May 8–19, 2008 | Hillary Clinton | 39% | John McCain | 36% | Not reported | Not reported |
| Harris Interactive | May 8–19, 2008 | Barack Obama | 41% | John McCain | 47% | Not reported | Not reported |
| Reuters/Zogby International | May 15–18, 2008 | Hillary Clinton | 43% | John McCain | 43% | 1,076 LV | ±3.0% |
| Reuters/Zogby International | May 15–18, 2008 | Barack Obama | 48% | John McCain | 40% | 1,076 LV | ±3.0% |
| Gallup (Daily Tracking) | May 14–18, 2008 | Hillary Clinton | 48% | John McCain | 44% | 4,444 RV | ±2% |
| Gallup (Daily Tracking) | May 14–18, 2008 | Barack Obama | 46% | John McCain | 45% | 4,444 RV | ±2% |
| Investor's Business Daily/TIPP | May 12–18, 2008 | Hillary Clinton | 44% | John McCain | 39% | 876 RV | ±3.2% |
| Investor's Business Daily/TIPP | May 12–18, 2008 | Barack Obama | 48% | John McCain | 37% | 876 RV | ±3.2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 13–16, 2008 | Hillary Clinton | 44% | John McCain | 44% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 13–16, 2008 | Barack Obama | 44% | John McCain | 45% | 1,600 LV | ±3% |
| The Economist/Polimetrix/YouGov | May 14–15, 2008 | Hillary Clinton | 44% | John McCain | 40% | 993 A | ±4% |
| The Economist/Polimetrix/YouGov | May 14–15, 2008 | Barack Obama | 39% | John McCain | 42% | 995 A | ±4% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | May 13–15, 2008 | Hillary Clinton | 43% | John McCain | 51% | 1014 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | May 13–15, 2008 | Barack Obama | 49% | John McCain | 47% | 1014 LV | Not reported |
| George Washington University/Tarrance Group/Lake Research | May 11–14, 2008 | Hillary Clinton | 49% | John McCain | 47% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research | May 11–14, 2008 | Barack Obama | 48% | John McCain | 46% | 1,000 LV | ±3.1% |
| Gallup (Daily Tracking) | May 9–13, 2012 | Hillary Clinton | 48% | John McCain | 45% | 4,381 RV | ±2% |
| Gallup (Daily Tracking) | May 9–13, 2012 | Barack Obama | 46% | John McCain | 45% | 4,381 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 9–12, 2008 | Hillary Clinton | 45% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 9–12, 2008 | Barack Obama | 47% | John McCain | 46% | 1,600 LV | ±3% |
| Quinnipiac University | May 8–12, 2008 | Hillary Clinton | 46% | John McCain | 41% | 1,745 RV | ±2.4% |
| Quinnipiac University | May 8–12, 2008 | Barack Obama | 47% | John McCain | 40% | 1,745 RV | ±2.4% |
| ABC News/Washington Post | May 8–11, 2008 | Hillary Clinton | 49% | John McCain | 46% | Not reported | Not reported |
| ABC News/Washington Post | May 8–11, 2008 | Barack Obama | 51% | John McCain | 44% | Not reported | Not reported |
| NPR/Public Opinion Strategies/Greenberg Quinlan Rosner | May 7–8, 10, 2008 | Hillary Clinton | 45% | John McCain | 46% | 800 LV | ±3.46% |
| NPR/Public Opinion Strategies/Greenberg Quinlan Rosner | May 7–8, 10, 2008 | Barack Obama | 48% | John McCain | 43% | 800 LV | ±3.46% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 5–8, 2008 | Hillary Clinton | 48% | John McCain | 43% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 5–8, 2008 | Barack Obama | 47% | John McCain | 44% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | May 4–8, 2008 | Hillary Clinton | 48% | John McCain | 44% | 4,348 RV | ±2% |
| Gallup (Daily Tracking) | May 4–8, 2008 | Barack Obama | 46% | John McCain | 45% | 4,348 RV | ±2% |
| Los Angeles Times/Bloomberg | May 1–8, 2008 | Hillary Clinton | 47% | John McCain | 38% | 1,986 RV | ±3% |
| Los Angeles Times/Bloomberg | May 1–8, 2008 | Barack Obama | 46% | John McCain | 40% | 1,986 RV | ±3% |
| The Economist/Polimetrix/YouGov | May 5–6, 2008 | Hillary Clinton | 39% | John McCain | 47% | 996 A | ±4% |
| The Economist/Polimetrix/YouGov | May 5–6, 2008 | Barack Obama | 39% | John McCain | 46% | 996 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 1–4, 2008 | Hillary Clinton | 43% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | May 1–4, 2008 | Barack Obama | 43% | John McCain | 47% | 1,600 LV | ±3% |
| Ipsos | April 30 – May 4, 2008 | Hillary Clinton | 47% | John McCain | 42% | 755 RV | ±3.6% |
| Ipsos | April 30 – May 4, 2008 | Barack Obama | 46% | John McCain | 42% | 755 RV | ±3.6% |
| USA Today/Gallup | May 1–3, 2008 | Hillary Clinton | 46% | John McCain | 49% | 803 LV | ±5% |
| USA Today/Gallup | May 1–3, 2008 | Barack Obama | 47% | John McCain | 48% | 803 LV | ±5% |
| CBS News/New York Times | May 1–3, 2008 | Hillary Clinton | 53% | John McCain | 41% | 601 RV | Not reported |
| CBS News/New York Times | May 1–3, 2008 | Barack Obama | 51% | John McCain | 40% | 601 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics | April 30 – May 3, 2008 | Hillary Clinton | 46% | John McCain | 43% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | April 30 – May 3, 2008 | Barack Obama | 47% | John McCain | 43% | 803 RV | ±3.5% |
| The Economist/Polimetrix/YouGov | April 30–May 2, 2008 | Hillary Clinton | 44% | John McCain | 41% | 993 A | ±4% |
| The Economist/Polimetrix/YouGov | April 30–May 2, 2008 | Barack Obama | 43% | John McCain | 41% | 998 A | ±4% |
| CNN/Opinion Research Corporation | April 28–30, 2008 | Hillary Clinton | 49% | John McCain | 44% | 906 RV | ±3.5% |
| CNN/Opinion Research Corporation | April 28–30, 2008 | Barack Obama | 49% | John McCain | 45% | 906 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 27–30, 2008 | Hillary Clinton | 44% | John McCain | 44% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 27–30, 2008 | Barack Obama | 43% | John McCain | 46% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | April 26–30, 2008 | Hillary Clinton | 46% | John McCain | 46% | 4,369 RV | ±2% |
| Gallup (Daily Tracking) | April 26–30, 2008 | Barack Obama | 43% | John McCain | 47% | 4,369 RV | ±2% |
| Fox News/Opinion Dynamics | April 28–29, 2008 | Hillary Clinton | 45% | John McCain | 44% | 900 RV | ±3% |
| Fox News/Opinion Dynamics | April 28–29, 2008 | Barack Obama | 43% | John McCain | 46% | 900 RV | ±3% |
| CBS News/New York Times | April 25–29, 2008 | Hillary Clinton | 48% | John McCain | 43% | 891 RV | Not reported |
| CBS News/New York Times | April 25–29, 2008 | Barack Obama | 45% | John McCain | 45% | 891 RV | Not reported |
| NBC News/Wall Street Journal | April 25–28, 2008 | Hillary Clinton | 45% | John McCain | 44% | 1,006 RV | ±3.1% |
| NBC News/Wall Street Journal | April 25–28, 2008 | Barack Obama | 46% | John McCain | 43% | 1,006 RV | ±3.1% |
| Pew Research Center | April 23–27, 2008 | Hillary Clinton | 49% | John McCain | 45% | 1,323 RV | Not reported |
| Pew Research Center | April 23–27, 2008 | Barack Obama | 50% | John McCain | 44% | 1,323 RV | Not reported |
| Associated Press/Ipsos | April 23–27, 2008 | Hillary Clinton | 50% | John McCain | 41% | 760 RV | ±3.6% |
| Associated Press/Ipsos | April 23–27, 2008 | Barack Obama | 46% | John McCain | 44% | 760 RV | ±3.6% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 23–26, 2008 | Hillary Clinton | 45% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 23–26, 2008 | Barack Obama | 46% | John McCain | 46% | 1,600 LV | ±3% |
| Newsweek/Princeton Survey Research Associates International | April 24–25, 2008 | Hillary Clinton Barack Obama | 48% 47% | John McCain John McCain | 45% 44% | 1,203 RV | ±3% |
| Gallup (Daily Tracking) | April 21–25, 2008 | Hillary Clinton | 47% | John McCain | 44% | 4,397 RV | ±2% |
| Gallup (Daily Tracking) | April 21–25, 2008 | Barack Obama | 45% | John McCain | 45% | 4,397 RV | ±2% |
| The Economist/Polimetrix/YouGov | April 21–22, 2008 | Hillary Clinton | 43% | John McCain | 44% | 993 A | ±4% |
| The Economist/Polimetrix/YouGov | April 21–22, 2008 | Barack Obama | 42% | John McCain | 45% | 995 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 19–22, 2008 | Hillary Clinton | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 19–22, 2008 | Barack Obama | 44% | John McCain | 47% | 1,600 LV | ±3% |
| USA Today/Gallup | April 18–20, 2008 | Hillary Clinton | 49% | John McCain | 45% | 832 LV | ±4% |
| USA Today/Gallup | April 18–20, 2008 | Barack Obama | 49% | John McCain | 44% | 832 LV | ±4% |
| Cook Political Report/RT Strategies | April 17–20, 2008 | Hillary Clinton | 45% | John McCain | 46% | 802 RV | ±3.5% |
| Cook Political Report/RT Strategies | April 17–20, 2008 | Barack Obama | 44% | John McCain | 45% | 802 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 15–18, 2008 | Hillary Clinton | 42% | John McCain | 49% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 15–18, 2008 | Barack Obama | 41% | John McCain | 48% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | April 14–18, 2008 | Hillary Clinton | 46% | John McCain | 44% | 4,392 RV | ±2% |
| Gallup (Daily Tracking) | April 14–18, 2008 | Barack Obama | 45% | John McCain | 44% | 4,392 RV | ±2% |
| Newsweek/Princeton Survey Research Associates International | April 16–17, 2008 | Hillary Clinton | 47% | John McCain | 43% | 1,209 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | April 16–17, 2008 | Barack Obama | 48% | John McCain | 44% | 1,209 RV | ±3% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | April 15–17, 2008 | Hillary Clinton | 47% | John McCain | 49% | 1,000 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | April 15–17, 2008 | Barack Obama | 48% | John McCain | 47% | 1,000 LV | Not reported |
| The Economist/Polimetrix/YouGov | April 15–16, 2008 | Hillary Clinton | 40% | John McCain | 45% | 997 A | ±4% |
| The Economist/Polimetrix/YouGov | April 15–16, 2008 | Barack Obama | 42% | John McCain | 45% | 995 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 11–14, 2008 | Hillary Clinton | 41% | John McCain | 48% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 11–14, 2008 | Barack Obama | 43% | John McCain | 47% | 1,600 LV | ±3% |
| ABC News/Washington Post | April 10–13, 2008 | Hillary Clinton | 45% | John McCain | 48% | Not reported | Not reported |
| ABC News/Washington Post | April 10–13, 2008 | Barack Obama | 49% | John McCain | 44% | Not reported | Not reported |
| Gallup (Daily Tracking) | April 9–13, 2008 | Hillary Clinton | 46% | John McCain | 45% | 4,415 RV | ±2% |
| Gallup (Daily Tracking) | April 9–13, 2008 | Barack Obama | 46% | John McCain | 44% | 4,415 RV | ±2% |
| Harris Interactive | April 11–12, 2008 | Hillary Clinton | 39% | John McCain | 38% | Not reported | Not reported |
| Harris Interactive | April 11–12, 2008 | Barack Obama | 41% | John McCain | 36% | Not reported | Not reported |
| Reuters/Zogby International | April 10–12, 2008 | Hillary Clinton | 41% | John McCain | 46% | 1,046 LV | ±3.1% |
| Reuters/Zogby International | April 10–12, 2008 | Barack Obama | 45% | John McCain | 45% | 1,046 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 7–10, 2008 | Hillary Clinton | 42% | John McCain | 48% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 7–10, 2008 | Barack Obama | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Associated Press/Ipsos | April 7–9, 2008 | Hillary Clinton | 48% | John McCain | 45% | 749 RV | ±3.6% |
| Associated Press/Ipsos | April 7–9, 2008 | Barack Obama | 45% | John McCain | 45% | 749 RV | ±3.6% |
| Gallup (Daily Tracking) | April 4–8, 2008 | Hillary Clinton | 46% | John McCain | 46% | 4,366 RV | ±2% |
| Gallup (Daily Tracking) | April 4–8, 2008 | Barack Obama | 46% | John McCain | 44% | 4,366 RV | ±2% |
| The Economist/Polimetrix/YouGov | April 4–7, 2008 | Hillary Clinton | 43% | John McCain | 44% | 994 A | ±4% |
| The Economist/Polimetrix/YouGov | April 4–7, 2008 | Barack Obama | 43% | John McCain | 44% | 994 A | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 3−6, 2008 | Hillary Clinton | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | April 3−6, 2008 | Barack Obama | 45% | John McCain | 46% | 1,600 LV | ±3% |
| Investor's Business Daily/TIPP | April 1–6, 2008 | Hillary Clinton | 38% | John McCain | 45% | 916 RV | Not reported |
| Investor's Business Daily/TIPP | April 1–6, 2008 | Barack Obama | 44% | John McCain | 44% | 916 RV | Not reported |
| Gallup (Daily Tracking) | March 31–April 3, 2008 | Hillary Clinton | 45% | John McCain | 46% | 4,433 RV | ±2% |
| Gallup (Daily Tracking) | March 31–April 3, 2008 | Barack Obama | 45% | John McCain | 46% | 4,433 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 30–April 2, 2008 | Hillary Clinton | 42% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 30–April 2, 2008 | Barack Obama | 41% | John McCain | 48% | 1,600 LV | ±3% |
| CBS News/New York Times | March 28 – April 2, 2008 | Hillary Clinton | 48% | John McCain | 43% | 1,196 RV | Not reported |
| CBS News/New York Times | March 28 – April 2, 2008 | Barack Obama | 47% | John McCain | 42% | 1,196 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics | March 28–31, 2008 | Hillary Clinton | 41% | John McCain | 50% | 799 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | March 28–31, 2008 | Barack Obama | 44% | John McCain | 46% | 799 RV | ±3.5% |
| Gallup (Daily Tracking) | March 26–30, 2008 | Hillary Clinton | 45% | John McCain | 47% | 4,394 RV | ±2% |
| Gallup (Daily Tracking) | March 26–30, 2008 | Barack Obama | 45% | John McCain | 46% | 4,394 RV | ±2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 26–29, 2008 | Hillary Clinton | 40% | John McCain | 50% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 26–29, 2008 | Barack Obama | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Republican National Committee/Voter/Voter/Consumer Research (R) | March 25–27, 2008 | Hillary Clinton | 40% | John McCain | 51% | 800 RV | Not reported |
| Republican National Committee/Voter/Voter/Consumer Research (R) | March 25–27, 2008 | Barack Obama | 42% | John McCain | 48% | 800 RV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | March 25–27, 2008 | Hillary Clinton | 43% | John McCain | 52% | 500 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | March 25–27, 2008 | Barack Obama | 49% | John McCain | 46% | 500 LV | Not reported |
| NBC News/Wall Street Journal | March 24–25, 2008 | Hillary Clinton | 44% | John McCain | 46% | 800 RV | ±3.5% |
| NBC News/Wall Street Journal | March 24–25, 2008 | Barack Obama | 44% | John McCain | 42% | 800 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 22–25, 2008 | Hillary Clinton | 43% | John McCain | 50% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 22–25, 2008 | Barack Obama | 41% | John McCain | 51% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | March 21–22, 24–25, 2008 | Hillary Clinton | 45% | John McCain | 47% | 4,433 RV | ±2% |
| Gallup (Daily Tracking) | March 21–22, 24–25, 2008 | Barack Obama | 44% | John McCain | 46% | 4,433 RV | ±2% |
| The Economist/Polimetrix/YouGov | March 21–24, 2008 | Hillary Clinton | 39% | John McCain | 48% | 995 A | ±4% |
| The Economist/Polimetrix/YouGov | March 21–24, 2008 | Barack Obama | 41% | John McCain | 45% | 992 A | ±4% |
| Harris Interactive | March 14–24, 2008 | Hillary Clinton | 39% | John McCain | 35% | Not reported | Not reported |
| Harris Interactive | March 14–24, 2008 | Barack Obama | 40% | John McCain | 35% | Not reported | Not reported |
| Pew Research Center | March 19–22, 2008 | Hillary Clinton | 49% | John McCain | 44% | 1,248 RV | ±3.5% |
| Pew Research Center | March 19–22, 2008 | Barack Obama | 49% | John McCain | 43% | 1,248 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 18–21, 2008 | Hillary Clinton | 43% | John McCain | 49% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 18–21, 2008 | Barack Obama | 41% | John McCain | 49% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | March 16–20, 2008 | Hillary Clinton | 45% | John McCain | 48% | 4,377 RV | ±2% |
| Gallup (Daily Tracking) | March 16–20, 2008 | Barack Obama | 44% | John McCain | 47% | 4,377 RV | ±2% |
| Fox News/Opinion Dynamics Corporation | March 18–19, 2008 | Hillary Clinton | 46% | John McCain | 43% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | March 18–19, 2008 | Barack Obama | 43% | John McCain | 44% | 900 RV | ±3% |
| CBS News | March 15–18, 2008 | Hillary Clinton | 46% | John McCain | 44% | Not reported | Not reported |
| CBS News | March 15–18, 2008 | Barack Obama | 44% | John McCain | 46% | Not reported | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 14–17, 2008 | Hillary Clinton | 42% | John McCain | 48% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 14–17, 2008 | Barack Obama | 42% | John McCain | 48% | 1,600 LV | ±3% |
| CNN/Opinion Research Corporation | March 14–16, 2008 | Hillary Clinton | 49% | John McCain | 47% | 950 RV | ±3% |
| CNN/Opinion Research Corporation | March 14–16, 2008 | Barack Obama | 47% | John McCain | 46% | 950 RV | ±3% |
| USA Today/Gallup | March 14–16, 2008 | Hillary Clinton | 51% | John McCain | 46% | 685 LV | ±4% |
| USA Today/Gallup | March 14–16, 2008 | Barack Obama | 49% | John McCain | 47% | 685 LV | ±4% |
| Reuters/Zogby International | March 13–14, 2008 | Hillary Clinton | 40% | John McCain | 48% | 1,004 LV | ±3.2% |
| Reuters/Zogby International | March 13–14, 2008 | Barack Obama | 40% | John McCain | 46% | 1,004 LV | ±3.2% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 10–13, 2008 | Hillary Clinton | 44% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 10–13, 2008 | Barack Obama | 42% | John McCain | 47% | 1,600 LV | ±3% |
| Gallup (Daily Tracking) | March 7–11, 2008 | Hillary Clinton | 47% | John McCain | 45% | 4,372 RV | ±2% |
| Gallup (Daily Tracking) | March 7–11, 2008 | Barack Obama | 46% | John McCain | 44% | 4,372 RV | ±2% |
| NBC News/Wall Street Journal | March 7–10, 2008 | Hillary Clinton | 47% | John McCain | 45% | 1,012 RV | ±3.1% |
| NBC News/Wall Street Journal | March 7–10, 2008 | Barack Obama | 47% | John McCain | 44% | 1,012 RV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 6–9, 2008 | Hillary Clinton | 46% | John McCain | 45% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 6–9, 2008 | Barack Obama | 44% | John McCain | 45% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 2–5, 2008 | Hillary Clinton | 45% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | March 2–5, 2008 | Barack Obama | 44% | John McCain | 46% | 1,600 LV | ±3% |
| SurveyUSA | March 4, 2008 | Hillary Clinton | 48% | John McCain | 46% | 1,041 RV | Not reported |
| SurveyUSA | March 4, 2008 | Barack Obama | 46% | John McCain | 46% | 1,041 RV | Not reported |
| Cook Political Report/RT Strategies | February 28 – March 2, 2008 | Barack Obama | 47% | John McCain | 38% | 802 RV | ±3.5% |
| ABC News/Washington Post | February 28 – March 2, 2008 | Hillary Clinton | 50% | John McCain | 47% | Not reported | Not reported |
| ABC News/Washington Post | February 28 – March 2, 2008 | Barack Obama | 53% | John McCain | 42% | Not reported | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 27–March 1, 2008 | Hillary Clinton | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 27–March 1, 2008 | Barack Obama | 43% | John McCain | 48% | 1,600 LV | ±3% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | February 24–26, 2008 | Barack Obama | 48% | John McCain | 47% | 1,956 LV | Not reported |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 23–26, 2008 | Hillary Clinton | 43% | John McCain | 48% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 23–26, 2008 | Barack Obama | 43% | John McCain | 46% | 1,600 LV | ±3% |
| Los Angeles Times/Bloomberg | February 21–25, 2008 | Hillary Clinton | 40% | John McCain | 46% | 1,246 RV | ±3% |
| Los Angeles Times/Bloomberg | February 21–25, 2008 | Barack Obama | 42% | John McCain | 44% | 1,246 RV | ±3% |
| Associated Press/Ipsos | February 22–24, 2008 | Hillary Clinton | 48% | John McCain | 43% | 755 RV | ±3.6% |
| Associated Press/Ipsos | February 22–24, 2008 | Barack Obama | 51% | John McCain | 41% | 755 RV | ±3.6% |
| USA Today/Gallup | February 21–24, 2008 | Hillary Clinton | 46% | John McCain | 50% | 1,653 LV | ±3% |
| USA Today/Gallup | February 21–24, 2008 | Barack Obama | 47% | John McCain | 48% | 1,653 LV | ±3% |
| Pew Research Center | February 20–24, 2008 | Hillary Clinton | 50% | John McCain | 45% | 1,240 RV | ±3.5% |
| Pew Research Center | February 20–24, 2008 | Barack Obama | 50% | John McCain | 43% | 1,240 RV | ±3.5% |
| CBS News/New York Times | February 20–24, 2008 | Hillary Clinton | 46% | John McCain | 46% | 1,115 RV | ±3% |
| CBS News/New York Times | February 20–24, 2008 | Barack Obama | 50% | John McCain | 38% | 1,115 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 19–22, 2008 | Hillary Clinton | 44% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 19–22, 2008 | Barack Obama | 43% | John McCain | 46% | 1,600 LV | ±3% |
| Fox News/Opinion Dynamics Corporation | February 19–20, 2008 | Hillary Clinton | 44% | John McCain | 47% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | February 19–20, 2008 | Barack Obama | 47% | John McCain | 43% | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 15–18, 2008 | Hillary Clinton | 43% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 15–18, 2008 | Barack Obama | 46% | John McCain | 43% | 1,600 LV | ±3% |
| Diageo/The Hotline/Financial Dynamics | February 14–17, 2008 | Hillary Clinton | 40% | John McCain | 48% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | February 14–17, 2008 | Barack Obama | 48% | John McCain | 40% | 803 RV | ±3.5% |
| Reuters/Zogby International | February 13–16, 2008 | Hillary Clinton | 38% | John McCain | 50% | 1,105 LV | ±3% |
| Reuters/Zogby International | February 13–16, 2008 | Barack Obama | 47% | John McCain | 40% | 1,105 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 11–14, 2008 | Hillary Clinton | 41% | John McCain | 49% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 11–14, 2008 | Barack Obama | 46% | John McCain | 43% | 1,600 LV | ±3% |
| USA Today/Gallup | February 8–10, 2008 | Hillary Clinton | 48% | John McCain | 49% | 706 LV | ±4% |
| USA Today/Gallup | February 8–10, 2008 | Barack Obama | 50% | John McCain | 46% | 706 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 7–10, 2008 | Hillary Clinton | 43% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 7–10, 2008 | Barack Obama | 44% | John McCain | 40% | 1,600 LV | ±3% |
| Associated Press/Ipsos | February 7–10, 2008 | Hillary Clinton | 46% | John McCain | 45% | 790 RV | ±3.5% |
| Associated Press/Ipsos | February 7–10, 2008 | Barack Obama | 48% | John McCain | 42% | 790 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 3–6, 2008 | Hillary Clinton | 44% | John McCain | 46% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | February 3–6, 2008 | Barack Obama | 46% | John McCain | 43% | 1,600 LV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | February 1–4, 2008 | Hillary Clinton | 46% | John McCain | 46% | 958 LV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | February 1–4, 2008 | Barack Obama | 48% | John McCain | 41% | 958 LV | ±3% |
Three-way race
| Poll source | Date administered | Democrat | % | Republican | % | Independent | % | Sample size | Margin of error |
| Associated Press/Yahoo News/Knowledge Networks | April 2–14, 2008 | Barack Obama | 34% | John McCain | 36% | Ralph Nader | 3% | 1,576 RV | ±2.5% |
| Associated Press/Yahoo News/Knowledge Networks | April 2–14, 2008 | Hillary Clinton | 36% | John McCain | 37% | Ralph Nader | 3% | 1,576 RV | ±2.5% |
| Reuters/Zogby International | March 13–14, 2008 | Barack Obama | 39% | John McCain | 44% | Ralph Nader | 5% | 1,004 LV | ±3.2% |
| Reuters/Zogby International | March 13–14, 2008 | Hillary Clinton | 39% | John McCain | 45% | Ralph Nader | 6% | 1,004 LV | ±3.2% |
Four-way race
| Poll source | Date administered | Democrat | % | Republican | % | Independent | % | Libertarian | % | Sample size | Margin of error |
| Reuters/Zogby International | May 15–18, 2008 | Barack Obama | 47% | John McCain | 37% | Ralph Nader | 4% | Bob Barr | 3% | 1,076 LV | ±3.0% |
| Reuters/Zogby International | May 15–18, 2008 | Hillary Clinton | 41% | John McCain | 40% | Ralph Nader | 4% | Bob Barr | 3% | 1,076 LV | ±3.0% |
| Rasmussen Reports/Pulse Opinion Research | May 14–15, 2008 | Barack Obama | 42% | John McCain | 38% | Ralph Nader | 4% | Bob Barr | 6% | 800 LV | ±3.5% |
| Zogby Interactive | April 25–28, 2008 | Barack Obama | 45% | John McCain | 42% | Ralph Nader | 1% | Bob Barr | 3% | 7,653 LV | ±1.1% |
| Zogby Interactive | April 25–28, 2008 | Hillary Clinton | 34% | John McCain | 44% | Ralph Nader | 3% | Bob Barr | 4% | 7,653 LV | ±1.1% |
| Reuters/Zogby International | April 10–12, 2008 | Barack Obama | 44% | John McCain | 42% | Ralph Nader | 3% | Bob Barr | 2% | 1,046 LV | ±3.1% |
| Reuters/Zogby International | April 10–12, 2008 | Hillary Clinton | 39% | John McCain | 45% | Ralph Nader | 3% | Bob Barr | 2% | 1,046 LV | ±3.1% |

#### Democratic field vs. Republican field

| Poll Source | Date administered | Democrat | % | Republican | % | Sample size | Margin of error |
| The Economist/Polimetrix/YouGov | February 25–26, 2008 | Hillary Clinton | 44% | Mike Huckabee | 45% | 994 A | ±4% |
| The Economist/Polimetrix/YouGov | February 25–26, 2008 | Hillary Clinton | 40% | John McCain | 46% | 991 A | ±4% |
| The Economist/Polimetrix/YouGov | February 25–26, 2008 | Barack Obama | 47% | Mike Huckabee | 41% | 988 A | ±4% |
| The Economist/Polimetrix/YouGov | February 25–26, 2008 | Barack Obama | 43% | John McCain | 44% | 993 A | ±4% |
| The Economist/Polimetrix/YouGov | February 19–20, 2008 | Hillary Clinton | 46% | Mike Huckabee | 40% | 999 A | ±4% |
| The Economist/Polimetrix/YouGov | February 19–20, 2008 | Hillary Clinton | 43% | John McCain | 44% | 996 A | ±4% |
| The Economist/Polimetrix/YouGov | February 19–20, 2008 | Barack Obama | 49% | Mike Huckabee | 45% | 997 A | ±4% |
| The Economist/Polimetrix/YouGov | February 19–20, 2008 | Barack Obama | 45% | John McCain | 41% | 1,000 A | ±4% |
| The Economist/Polimetrix/YouGov | February 10–11, 2008 | Hillary Clinton | 48% | Mike Huckabee | 41% | 999 A | ±4% |
| The Economist/Polimetrix/YouGov | February 10–11, 2008 | Hillary Clinton | 43% | John McCain | 44% | 998 A | ±4% |
| The Economist/Polimetrix/YouGov | February 10–11, 2008 | Barack Obama | 51% | Mike Huckabee | 37% | 998 A | ±4% |
| The Economist/Polimetrix/YouGov | February 10–11, 2008 | Barack Obama | 49% | John McCain | 39% | 996 A | ±4% |
| Zogby International | February 8−11, 2008 | Hillary Clinton | 37% | John McCain | 42% | 7,468 LV | ±1.2% |
| Zogby International | February 8−11, 2008 | Barack Obama | 47% | John McCain | 36% | 7,468 LV | ±1.2% |
| Zogby International | February 8−11, 2008 | Hillary Clinton | 40% | Mike Huckabee | 37% | 7,468 LV | ±1.2% |
| Zogby International | February 8−11, 2008 | Barack Obama | 49% | Mike Huckabee | 34% | 7,468 LV | ±1.2% |
| The Economist/Polimetrix/YouGov | February 4–5, 2008 | Hillary Clinton | 51% | Mitt Romney | 36% | 998 A | ±4% |
| The Economist/Polimetrix/YouGov | February 4–5, 2008 | Hillary Clinton | 46% | John McCain | 39% | 994 A | ±4% |
| The Economist/Polimetrix/YouGov | February 4–5, 2008 | Barack Obama | 49% | Mitt Romney | 35% | 997 A | ±4% |
| The Economist/Polimetrix/YouGov | February 4–5, 2008 | Barack Obama | 44% | John McCain | 38% | 993 A | ±4% |
| CNN/Opinion Research Corporation | February 1−3, 2008 | Barack Obama | 59% | Mitt Romney | 36% | 974 RV | ±3% |
| CNN/Opinion Research Corporation | February 1−3, 2008 | Hillary Clinton | 56% | Mitt Romney | 41% | 974 RV | ±3% |
| CNN/Opinion Research Corporation | February 1−3, 2008 | Barack Obama | 52% | John McCain | 44% | 974 RV | ±3% |
| CNN/Opinion Research Corporation | February 1−3, 2008 | Hillary Clinton | 50% | John McCain | 47% | 974 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | January 31 − February 3, 2008 | Hillary Clinton | 39% | John McCain | 47% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | January 31 − February 3, 2008 | Hillary Clinton | 50% | Mitt Romney | 37% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | January 31 − February 3, 2008 | Barack Obama | 44% | John McCain | 44% | 1,600 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research (Daily Tracking) | January 31 − February 3, 2008 | Barack Obama | 44% | Mitt Romney | 41% | 1,600 LV | ±3% |
| Cook Political Report/RT Strategies | January 31 – February 2, 2008 | Hillary Clinton | 41% | John McCain | 45% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | January 31 – February 2, 2008 | Hillary Clinton | 48% | Mitt Romney | 42% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | January 31 – February 2, 2008 | Barack Obama | 45% | John McCain | 43% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | January 31 – February 2, 2008 | Barack Obama | 50% | Mitt Romney | 41% | 855 RV | ±3.4% |
| ABC News/Washington Post | January 30 – February 1, 2008 | Hillary Clinton | 45% | John McCain | 50% | Not reported | Not reported |
| ABC News/Washington Post | January 30 – February 1, 2008 | Hillary Clinton | 51% | Mitt Romney | 43% | Not reported | Not reported |
| ABC News/Washington Post | January 30 – February 1, 2008 | Barack Obama | 47% | John McCain | 48% | Not reported | Not reported |
| ABC News/Washington Post | January 30 – February 1, 2008 | Barack Obama | 57% | Mitt Romney | 36% | Not reported | Not reported |
| Fox News/Opinion Dynamics Corporation | January 30–31, 2008 | Hillary Clinton | 44% | John McCain | 45% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | January 30–31, 2008 | Hillary Clinton | 50% | Mitt Romney | 36% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | January 30–31, 2008 | Barack Obama | 44% | John McCain | 43% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | January 30–31, 2008 | Barack Obama | 51% | Mitt Romney | 33% | 900 RV | ±3% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | January 29–31, 2008 | Hillary Clinton | 46% | John McCain | 48% | 500 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | January 29–31, 2008 | Barack Obama | 47% | John McCain | 48% | 500 LV | Not reported |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | January 29–31, 2008 | Hillary Clinton | 45% | John McCain | 48% | 1,000 LV | ±3% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | January 29–31, 2008 | Hillary Clinton | 49% | Mitt Romney | 44% | 1,000 LV | ±3% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | January 29–31, 2008 | Barack Obama | 47% | John McCain | 48% | 1,000 LV | ±3% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | January 29–31, 2008 | Barack Obama | 53% | Mitt Romney | 41% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | January 25–27, 2008 | Hillary Clinton | 40% | John McCain | 48% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | January 25–27, 2008 | Barack Obama | 41% | John McCain | 47% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | January 21–22, 2008 | Barack Obama | 47% | Mitt Romney | 38% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | January 21–22, 2008 | Hillary Clinton | 47% | Mitt Romney | 42% | 800 LV | ±4% |
| NBC News/Wall Street Journal | January 20–22, 2008 | Barack Obama | 41% | John McCain | 43% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Barack Obama | 48% | Mitt Romney | 35% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Barack Obama | 54% | Rudy Giuliani | 34% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Barack Obama | 55% | Mike Huckabee | 33% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Hillary Clinton | 43% | John McCain | 47% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Hillary Clinton | 50% | Mike Huckabee | 41% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Hillary Clinton | 52% | Rudy Giuliani | 37% | Not reported | Not reported |
| NBC News/Wall Street Journal | January 20–22, 2008 | Hillary Clinton | 52% | Mitt Romney | 36% | Not reported | Not reported |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Barack Obama | 47% | Mike Huckabee | 37% | 643 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Barack Obama | 41% | John McCain | 42% | 643 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Barack Obama | 49% | Rudy Giuliani | 32% | 643 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Barack Obama | 46% | Mitt Romney | 35% | 643 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Hillary Clinton | 51% | Mike Huckabee | 38% | 669 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Hillary Clinton | 53% | Rudy Giuliani | 37% | 669 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Hillary Clinton | 46% | John McCain | 42% | 669 RV | ±4% |
| Los Angeles Times/Bloomberg | January 18–22, 2008 | Hillary Clinton | 50% | Mitt Romney | 39% | 669 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | January 18–20, 2008 | Barack Obama | 51% | Mike Huckabee | 35% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | January 18–20, 2008 | Hillary Clinton | 48% | Mike Huckabee | 40% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | January 16–17, 2008 | Barack Obama | 46% | John McCain | 41% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | January 16–17, 2008 | Hillary Clinton | 47% | John McCain | 45% | 800 LV | ±4.5% |
| USA Today/Gallup | January 10–13, 2008 | Barack Obama | 53% | Mike Huckabee | 43% | 1,598 LV | ±3% |
| USA Today/Gallup | January 10–13, 2008 | Barack Obama | 45% | John McCain | 50% | 1,598 LV | ±3% |
| USA Today/Gallup | January 10–13, 2008 | Hillary Clinton | 47% | John McCain | 50% | 1,598 LV | ±3% |
| USA Today/Gallup | January 10–13, 2008 | Hillary Clinton | 51% | Mike Huckabee | 45% | 1,598 LV | ±3% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Barack Obama | 41% | John McCain | 39% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Hillary Clinton | 43% | John McCain | 47% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Barack Obama | 53% | Mike Huckabee | 30% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Hillary Clinton | 48% | Mike Huckabee | 39% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Barack Obama | 56% | Mitt Romney | 26% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Hillary Clinton | 49% | Mitt Romney | 37% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Barack Obama | 54% | Rudy Giuliani | 33% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | Hillary Clinton | 50% | Rudy Giuliani | 40% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | John Edwards | 48% | Rudy Giuliani | 31% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | John Edwards | 39% | John McCain | 47% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | John Edwards | 47% | Mike Huckabee | 31% | 803 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | January 10–12, 2008 | John Edwards | 48% | Mitt Romney | 33% | 803 RV | ±3.5% |
| Reuters/Zogby International | January 10–11, 2008 | Hillary Clinton | 47% | Mitt Romney | 37% | 1,006 LV | ±3.1% |
| Reuters/Zogby International | January 10–11, 2008 | Hillary Clinton | 47% | Mike Huckabee | 38% | 1,006 LV | ±3.1% |
| Reuters/Zogby International | January 10–11, 2008 | Hillary Clinton | 46% | Rudy Giuliani | 35% | 1,006 LV | ±3.1% |
| Reuters/Zogby International | January 10–11, 2008 | Barack Obama | 53% | Mitt Romney | 34% | 1,006 LV | ±3.1% |
| Reuters/Zogby International | January 10–11, 2008 | Barack Obama | 51% | Mike Huckabee | 36% | 1,006 LV | ±3.1% |
| Reuters/Zogby International | January 10–11, 2008 | Barack Obama | 51% | Rudy Giuliani | 34% | 1,006 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | January 9–10, 2008 | Hillary Clinton | 38% | John McCain | 49% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | January 9–10, 2008 | Hillary Clinton | 42% | Mike Huckabee | 45% | 800 LV | ±4.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Hillary Clinton | 50% | John McCain | 48% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Hillary Clinton | 55% | Rudy Giuliani | 42% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Hillary Clinton | 56% | Mike Huckabee | 42% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Hillary Clinton | 58% | Mitt Romney | 40% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Barack Obama | 49% | John McCain | 48% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Barack Obama | 56% | Rudy Giuliani | 40% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Barack Obama | 58% | Mike Huckabee | 39% | 840 RV | ±3.5% |
| CNN/Opinion Research Corporation | January 9–10, 2008 | Barack Obama | 59% | Mitt Romney | 37% | 840 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 7−8, 2008 | Barack Obama | 47% | Mitt Romney | 40% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 7−8, 2008 | Barack Obama | 48% | Rudy Giuliani | 38% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 4–6, 2008 | Barack Obama | 43% | John McCain | 46% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 4–6, 2008 | Barack Obama | 45% | Mike Huckabee | 43% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 2–3, 2008 | Barack Obama | 45% | Mitt Romney | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 2–3, 2008 | Barack Obama | 47% | Rudy Giuliani | 37% | 800 LV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Dec 18–19, 2007 | Barack Obama | 40% | John McCain | 44% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 18–19, 2007 | Barack Obama | 44% | Mike Huckabee | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 18–19, 2007 | Hillary Clinton | 42% | John McCain | 47% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 18–19, 2007 | Hillary Clinton | 47% | Mike Huckabee | 38% | 900 RV | ±3% |
| ABC News/Facebook | Dec 16–19, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 47% | 1,142 A | ±3% |
| ABC News/Facebook | Dec 16–19, 2007 | Hillary Clinton | 50% | Mike Huckabee | 42% | 1,142 A | ±3% |
| ABC News/Facebook | Dec 16–19, 2007 | Barack Obama | 48% | Rudy Giuliani | 41% | 1,142 A | ±3% |
| ABC News/Facebook | Dec 16–19, 2007 | Barack Obama | 52% | Mike Huckabee | 35% | 1,142 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 17–18, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 45% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 17–18, 2007 | Hillary Clinton | 43% | Mitt Romney | 44% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Not reported (Dec 15-16?) | Barack Obama | 43% | John McCain | 45% | Not reported | Not reported |
| Rasmussen Reports/Pulse Opinion Research | Not reported (Dec 15-16?) | Barack Obama | 47% | Fred Thompson | 40% | Not reported | Not reported |
| NBC News/Wall Street Journal | Dec 14–17, 2007 | Barack Obama | 49% | Rudy Giuliani | 40% | Not reported | Not reported |
| NBC News/Wall Street Journal | Dec 14–17, 2007 | Hillary Clinton | 46% | Mike Huckabee | 44% | Not reported | Not reported |
| NBC News/Wall Street Journal | Dec 14–17, 2007 | Barack Obama | 48% | Mike Huckabee | 36% | Not reported | Not reported |
| NBC News/Wall Street Journal | Dec 14–17, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 43% | 1,005 A | ±3.1% |
| NBC News/Wall Street Journal | Dec 14–17, 2007 | Hillary Clinton | 48% | Mitt Romney | 41% | 1,005 A | ±3.1% |
| USA Today/Gallup | Dec 14–16, 2007 | Barack Obama | 51% | Rudy Giuliani | 45% | 906 RV | ±4% |
| USA Today/Gallup | Dec 14–16, 2007 | Barack Obama | 53% | Mike Huckabee | 42% | 906 RV | ±4% |
| USA Today/Gallup | Dec 14–16, 2007 | Barack Obama | 57% | Mitt Romney | 39% | 906 RV | ±4% |
| USA Today/Gallup | Dec 14–16, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 48% | 906 RV | ±4% |
| USA Today/Gallup | Dec 14–16, 2007 | Hillary Clinton | 52% | Mitt Romney | 46% | 906 RV | ±4% |
| USA Today/Gallup | Dec 14–16, 2007 | Hillary Clinton | 53% | Mike Huckabee | 44% | 906 RV | ±4% |
| Zogby International | Dec 12–14, 2007 | Barack Obama | 53% | Mitt Romney | 35% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Barack Obama | 47% | Mike Huckabee | 42% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Barack Obama | 48% | Rudy Giuliani | 39% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Barack Obama | 47% | John McCain | 43% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Barack Obama | 52% | Fred Thompson | 36% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Hillary Clinton | 46% | Mitt Romney | 44% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Hillary Clinton | 43% | Mike Huckabee | 48% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 46% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Hillary Clinton | 42% | John McCain | 49% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | Hillary Clinton | 48% | Fred Thompson | 42% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | John Edwards | 50% | Mitt Romney | 38% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | John Edwards | 47% | Mike Huckabee | 41% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | John Edwards | 44% | Rudy Giuliani | 45% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | John Edwards | 42% | John McCain | 46% | 1,000 LV | ±3.2% |
| Zogby International | Dec 12–14, 2007 | John Edwards | 51% | Fred Thomson | 35% | 1,000 LV | ±3.2% |
| Rasmussen Reports/Pulse Opinion Research | Dec 12–13, 2007 | John Edwards | 46% | John McCain | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 12–13, 2007 | John Edwards | 49% | Mike Huckabee | 37% | 800 LV | ±3.5% |
| George Washington University/Tarrance Group/Lake Research Group | Dec 9–12, 2007 | Hillary Clinton | 50% | Rudy Giuliani | 44% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Dec 9–12, 2007 | Hillary Clinton | 50% | Mitt Romney | 44% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Dec 9–12, 2007 | Barack Obama | 46% | Rudy Giuliani | 43% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Dec 9–12, 2007 | Barack Obama | 48% | Mitt Romney | 42% | 1,000 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Dec 10–11, 2007 | Barack Obama | 43% | Rudy Giuliani | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 10–11, 2007 | Barack Obama | 45% | Mitt Romney | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 7–9, 2007 | Barack Obama | 50% | Ron Paul | 31% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 7–9, 2007 | Hillary Clinton | 49% | Ron Paul | 37% | 1,200 LV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | John Edwards | 52% | John McCain | 44% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | John Edwards | 53% | Rudy Giuliani | 44% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | John Edwards | 59% | Mitt Romney | 37% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | John Edwards | 60% | Mike Huckabee | 35% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Barack Obama | 48% | John McCain | 48% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Barack Obama | 52% | Rudy Giualiani | 45% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Barack Obama | 54% | Mitt Romney | 41% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Barack Obama | 55% | Mike Huckabee | 40% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Hillary Clinton | 48% | John McCain | 50% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 45% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Hillary Clinton | 54% | Mike Huckabee | 44% | 912 RV | ±3% |
| CNN/Opinion Research Corporation | Dec 6–9, 2007 | Hillary Clinton | 54% | Mitt Romney | 43% | 912 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 5–6, 2007 | John Edwards | 44% | Rudy Giuliani | 44% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 5–6, 2007 | John Edwards | 44% | Mike Huckabee | 40% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 3–4, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 43% | 800 LV | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 3–4, 2007 | Hillary Clinton | 46% | Mitt Romney | 43% | 800 LV | ±4.5% |
| Los Angeles Times/Bloomberg | Nov 30 – Dec 3, 2007 | Barack Obama | 44% | Rudy Giuliani | 39% | 1,245 RV | ±3% |
| Los Angeles Times/Bloomberg | Nov 30 – Dec 3, 2007 | Barack Obama | 45% | Mitt Romney | 33% | 1,245 RV | ±3% |
| Los Angeles Times/Bloomberg | Nov 30 – Dec 3, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 42% | 1,245 RV | ±3% |
| Los Angeles Times/Bloomberg | Nov 30 – Dec 3, 2007 | Hillary Clinton | 47% | Mitt Romney | 39% | 1,245 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 30 – Dec 2, 2007 | Barack Obama | 45% | Mike Huckabee | 41% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 30 – Dec 2, 2007 | Hillary Clinton | 46% | Mike Huckabee | 45% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 28–29, 2007 | Barack Obama | 44% | John McCain | 44% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 28–29, 2007 | Barack Obama | 48% | Mitt Romney | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 26–27, 2007 | Barack Obama | 43% | Rudy Giuliani | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 26–27, 2007 | Barack Obama | 48% | Fred Thompson | 41% | 800 LV | ±3.5% |
| Zogby Interactive | Nov 21–26, 2007 | Barack Obama | 46% | Rudy Giuliani | 41% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Barack Obama | 46% | Mike Huckabee | 40% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Barack Obama | 46% | Mitt Romney | 40% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Barack Obama | 47% | Fred Thompson | 40% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Barack Obama | 45% | John McCain | 38% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | John Edwards | 42% | John McCain | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | John Edwards | 43% | Rudy Giuliani | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | John Edwards | 43% | Mike Huckabee | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | John Edwards | 44% | Mitt Romney | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | John Edwards | 45% | Fred Thompson | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Hillary Clinton | 39% | Mike Huckabee | 44% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Hillary Clinton | 40% | Fred Thompson | 44% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Hillary Clinton | 38% | John McCain | 42% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 43% | 9,150 LV | ±1% |
| Zogby Interactive | Nov 21–26, 2007 | Hillary Clinton | 40% | Mitt Romney | 43% | 9,150 LV | ±1% |
| Rasmussen Reports/Pulse Opinion Research | Nov 19–20, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 46% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 19–20, 2007 | Hillary Clinton | 46% | Fred Thompson | 44% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 17–18, 2007 | Barack Obama | 46% | John McCain | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 17–18, 2007 | Barack Obama | 46% | Mitt Romney | 40% | 800 LV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Nov 13–14, 2007 | Hillary Clinton | 46% | John McCain | 45% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 13–14, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 43% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 13–14, 2007 | Hillary Clinton | 49% | Fred Thompson | 40% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 13–14, 2007 | Hillary Clinton | 50% | Mitt Romney | 37% | 900 RV | ±3% |
| USA Today/Gallup | Nov 11–14, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 44% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Hillary Clinton | 50% | John McCain | 44% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Hillary Clinton | 54% | Mitt Romney | 38% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Hillary Clinton | 53% | Fred Thompson | 40% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Barack Obama | 45% | Rudy Giuliani | 45% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Barack Obama | 47% | John McCain | 44% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Barack Obama | 52% | Mitt Romney | 35% | 897 RV | ±4% |
| USA Today/Gallup | Nov 11–14, 2007 | Barack Obama | 51% | Fred Thompson | 38% | 897 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Nov 12–13, 2007 | Barack Obama | 43% | Rudy Giuliani | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 12–13, 2007 | Barack Obama | 47% | Fred Thompson | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 7–8, 2007 | Hillary Clinton | 45% | John McCain | 47% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 7–8, 2007 | Hillary Clinton | 47% | Mitt Romney | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 5–6, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 5–6, 2007 | Hillary Clinton | 48% | Fred Thompson | 42% | 800 LV | ±3.5% |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 45% | 1,509 A | ±2.5% |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Hillary Clinton | 50% | Mitt Romney | 39% | 1,509 A | ±2.5% |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Barack Obama | 44% | Rudy Giuliani | 42% | 1,509 A | ±2.5% |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Hillary Clinton | 51% | Fred Thompson | 37% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Hillary Clinton | 47% | John McCain | 43% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Barack Obama | 48% | Mitt Romney | 34% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | John Edwards | 45% | Rudy Giuliani | 44% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 1–5, 2007 | Al Gore | 46% | Rudy Giuliani | 47% | Not reported | Not reported |
| Rasmussen Reports/Pulse Opinion Research | Nov 2–4, 2007 | Barack Obama | 49% | Mike Huckabee | 38% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 2–4, 2007 | Hillary Clinton | 46% | Mike Huckabee | 43% | 1,200 LV | ±3% |
| USA Today/Gallup | Nov 2–4, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 45% | 1,024 A | ±3% |
| CNN/Opinion Research Corporation | Nov 2–4, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 45% | 929 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 45% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Hillary Clinton | 49% | Fred Thompson | 45% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Hillary Clinton | 49% | Mitt Romney | 45% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | John Edwards | 48% | Rudy Giuliani | 45% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | John Edwards | 53% | Fred Thompson | 39% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | John Edwards | 53% | Mitt Romney | 37% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Barack Obama | 48% | Rudy Giuliani | 45% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Barack Obama | 52% | Fred Thompson | 39% | 1,002 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Oct 31 – Nov 1, 2007 | Barack Obama | 53% | Mitt Romney | 37% | 1,002 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Oct 31 – Nov 1, 2007 | John Edwards | 47% | John McCain | 38% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 31 – Nov 1, 2007 | John Edwards | 50% | Mitt Romney | 34% | 800 LV | ±3.5% |
| WNBC/Marist College | Oct 29 – Nov 1, 2007 | Hillary Clinton | 50% | Rudy Giuliani | 40% | 811 RV | ±3.5% |
| ABC News/Washington Post | Oct 29 – Nov 1, 2007 | Hillary Clinton | 50% | Rudy Giuliani | 46% | 1,131 A | ±3% |
| ABC News/Washington Post | Oct 29 – Nov 1, 2007 | Hillary Clinton | 52% | John McCain | 43% | 1,131 A | ±3% |
| ABC News/Washington Post | Oct 29 – Nov 1, 2007 | Hillary Clinton | 56% | Fred Thompson | 40% | 1,131 A | ±3% |
| ABC News/Washington Post | Oct 29 – Nov 1, 2007 | Hillary Clinton | 57% | Mitt Romney | 39% | 1,131 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 29–30, 2007 | Barack Obama | 43% | Rudy Giuliani | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 29–30, 2007 | Barack Obama | 44% | Fred Thompson | 43% | 800 LV | ±3.5% |
| Quinnipiac University | Oct 23–29, 2007 | Barack Obama | 43% | John McCain | 43% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Barack Obama | 43% | Rudy Giuliani | 42% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Barack Obama | 45% | Fred Thompson | 37% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Barack Obama | 46% | Mitt Romney | 36% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 45% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Hillary Clinton | 44% | John McCain | 44% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Hillary Clinton | 46% | Fred Thompson | 41% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | Hillary Clinton | 48% | Mitt Romney | 38% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | John Edwards | 41% | Rudy Giuliani | 44% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | John Edwards | 42% | John McCain | 42% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | John Edwards | 46% | Fred Thompson | 36% | 1,636 RV | ±2.4% |
| Quinnipiac University | Oct 23–29, 2007 | John Edwards | 47% | Mitt Romney | 34% | 1,636 RV | ±2.4% |
| Rasmussen Reports/Pulse Opinion Research | Oct 26–28, 2007 | Stephen Colbert | 36% | Ron Paul | 32% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 26–28, 2007 | Dennis Kucinich | 32% | Stephen Colbert | 37% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 24–25, 2007 | John Edwards | 44% | Rudy Giuliani | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 24–25, 2007 | John Edwards | 48% | Fred Thompson | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 22–23, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 46% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 22–23, 2007 | Hillary Clinton | 47% | Fred Thompson | 45% | 800 LV | ±3.5% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | Oct 21–23, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 45% | 994 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | Oct 21–23, 2007 | Hillary Clinton | 51% | Fred Thompson | 44% | 994 LV | Not reported |
| Pew Research Center | Oct 17–23, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 43% | 1607 RV | Not reported |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 41% | 512 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Hillary Clinton | 48% | John McCain | 38% | 512 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Hillary Clinton | 49% | Fred Thompson | 38% | 512 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Hillary Clinton | 49% | Mitt Romney | 34% | 512 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Barack Obama | 43% | Rudy Giuliani | 40% | 522 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Barack Obama | 44% | John McCain | 36% | 522 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Barack Obama | 42% | Mitt Romney | 32% | 522 RV | ±4% |
| Los Angeles Times/Bloomberg | Oct 19–22, 2007 | Barack Obama | 46% | Fred Thompson | 31% | 522 RV | ±4% |
| Cook Political Report/RT Strategies | Oct 18–21, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 39% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Oct 18–21, 2007 | Hillary Clinton | 46% | Mitt Romney | 37% | 855 RV | ±3.4% |
| Rasmussen Reports/Pulse Opinion Research | Oct 15–16, 2007 | Barack Obama | 44% | John McCain | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 15–16, 2007 | Barack Obama | 48% | Mitt Romney | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 15–16, 2007 | Barack Obama | 46% | Rudy Giuliani | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 15–16, 2007 | Barack Obama | 47% | Fred Thompson | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 12–14, 2007 | Barack Obama | 50% | Ron Paul | 33% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 12–14, 2007 | Hillary Clinton | 48% | Ron Paul | 38% | 1,200 LV | ±3% |
| CNN/Opinion Research Corporation | Oct 12–14, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 47% | 927 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 10–11, 2007 | Hillary Clinton | 44% | John McCain | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 10–11, 2007 | Hillary Clinton | 47% | Mitt Romney | 41% | 800 LV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Oct 9–10, 2007 | Hillary Clinton | 47% | John McCain | 44% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 9–10, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 43% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 9–10, 2007 | Hillary Clinton | 50% | Fred Thompson | 38% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 9–10, 2007 | Hillary Clinton | 50% | Mitt Romney | 38% | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Oct 8–9, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 8–9, 2007 | Hillary Clinton | 52% | Fred Thompson | 37% | 800 LV | ±3.5% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | Oct 4–7, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 44% | 800 LV | ±3.46% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | Oct 4–7, 2007 | Barack Obama | 44% | Rudy Giuliani | 44% | 800 LV | ±3.46% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | Oct 4–7, 2007 | Barack Obama | 48% | Fred Thompson | 39% | 800 LV | ±3.46% |
| NPR/Public Opinion Research/Greenberg Quinlan Rosner | Oct 4–7, 2007 | Hillary Clinton | 50% | Fred Thompson | 42% | 800 LV | ±3.46% |
| Rasmussen Reports/Pulse Opinion Research | Oct 3–4, 2007 | John Edwards | 47% | John McCain | 40% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 3–4, 2007 | John Edwards | 52% | Mitt Romney | 35% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 1–2, 2007 | Barack Obama | 47% | Rudy Giuliani | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Oct 1–2, 2007 | Barack Obama | 49% | Fred Thompson | 38% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 28–30, 2007 | Barack Obama | 47% | Mike Huckabee | 38% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Sep 28–30, 2007 | Hillary Clinton | 48% | Mike Huckabee | 40% | 1,200 LV | ±3% |
| ABC News/Washington Post | Sep 27–30, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 43% | 1,114 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Sep 26–27, 2007 | John Edwards | 50% | Rudy Giuliani | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 26–27, 2007 | John Edwards | 49% | Fred Thompson | 39% | 800 LV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 39% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Hillary Clinton | 46% | John McCain | 39% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Hillary Clinton | 48% | Fred Thompson | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Barack Obama | 41% | Rudy Giuliani | 40% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Barack Obama | 40% | John McCain | 38% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 25–26, 2007 | Barack Obama | 45% | Fred Thompson | 33% | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Sep 24–25, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 24–25, 2007 | Hillary Clinton | 49% | Fred Thompson | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 21–23, 2007 | Bill Richardson | 40% | Rudy Giuliani | 43% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Sep 21–23, 2007 | Bill Richardson | 41% | Fred Thompson | 42% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Sep 19–20, 2007 | Barack Obama | 46% | Mitt Romney | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 19–20, 2007 | Barack Obama | 46% | John McCain | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 17–18, 2007 | Barack Obama | 47% | Rudy Giuliani | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 17–18, 2007 | Barack Obama | 47% | Fred Thompson | 41% | 800 LV | ±3.5% |
| The Cook Political Report/RT Strategies | Sep 13–16, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 43% | 855 RV | ±3.4% |
| Rasmussen Reports/Pulse Opinion Research | Sep 12–13, 2007 | Hillary Clinton | 46% | John McCain | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 12–13, 2007 | Hillary Clinton | 49% | Mitt Romney | 40% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 10–11, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 10–11, 2007 | Hillary Clinton | 48% | Fred Thompson | 43% | 800 LV | ±3.5% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 42% | 1,002 A | ±3.1% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Hillary Clinton | 50% | Fred Thompson | 41% | 1,002 A | ±3.1% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Hillary Clinton | 51% | Mitt Romney | 38% | 1,002 A | ±3.1% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Hillary Clinton | 50% | Mike Huckabee | 36% | 1,002 A | ±3.1% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Barack Obama | 47% | Fred Thompson | 38% | 1,002 A | ±3.1% |
| NBC News/Wall Street Journal | Sep 7–10, 2007 | Barack Obama | 51% | Mitt Romney | 34% | 1,002 A | ±3.1% |
| CNN/Opinion Research Corporation | Sep 7–9, 2007 | Hillary Clinton | 50% | Rudy Giuliani | 46% | 914 RV | ±3% |
| CNN/Opinion Research Corporation | Sep 7–9, 2007 | Hillary Clinton | 55% | Fred Thompson | 42% | 914 RV | ±3% |
| CNN/Opinion Research Corporation | Sep 7–9, 2007 | Barack Obama | 45% | Rudy Giuliani | 49% | 914 RV | ±3% |
| CNN/Opinion Research Corporation | Sep 7–9, 2007 | Barack Obama | 53% | Fred Thompson | 41% | 914 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Sep 4, 2007 | Barack Obama | 44% | Rudy Giuliani | 45% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Sep 4, 2007 | Barack Obama | 46% | Fred Thompson | 42% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 29–30, 2007 | John Edwards | 45% | John McCain | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 29–30, 2007 | John Edwards | 49% | Mitt Romney | 38% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 27–28, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 47% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 27–28, 2007 | Hillary Clinton | 48% | Fred Thompson | 44% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 24–26, 2007 | Barack Obama | 48% | Tom Tancredo | 31% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Aug 24–26, 2007 | Hillary Clinton | 50% | Tom Tancredo | 37% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Aug 22–23, 2007 | John Edwards | 49% | Rudy Giuliani | 41% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Aug 22–23, 2007 | John Edwards | 49% | Fred Thompson | 35% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Aug 20–21, 2007 | Barack Obama | 45% | Rudy Giuliani | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 20–21, 2007 | Barack Obama | 45% | Fred Thompson | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 17–19, 2007 | Barack Obama | 48% | Mike Huckabee | 39% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Aug 17–19, 2007 | Hillary Clinton | 49% | Mike Huckabee | 41% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Aug 15–16, 2007 | Hillary Clinton | 46% | John McCain | 44% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 15–16, 2007 | Hillary Clinton | 51% | Mitt Romney | 40% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 13–14, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 47% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 13–14, 2007 | Hillary Clinton | 46% | Fred Thompson | 43% | 800 LV | ±3.5% |
| Quinnipiac University | Aug 7–13, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 43% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | Hillary Clinton | 47% | John McCain | 41% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | Hillary Clinton | 49% | Fred Thompson | 38% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | John Edwards | 43% | Rudy Giuliani | 42% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | John Edwards | 45% | John McCain | 37% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | John Edwards | 49% | Fred Thompson | 32% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | Barack Obama | 42% | Rudy Giuliani | 42% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | Barack Obama | 43% | John McCain | 39% | 1,545 RV | ±2.5% |
| Quinnipiac University | Aug 7–13, 2007 | Barack Obama | 46% | Fred Thompson | 35% | 1,545 RV | ±2.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 10–12, 2007 | Joe Biden | 34% | Rudy Giuliani | 50% | 1,200 LV | ±2.8% |
| Rasmussen Reports/Pulse Opinion Research | Aug 10–12, 2007 | Joe Biden | 39% | Fred Thompson | 39% | 1,200 LV | ±2.8% |
| Rasmussen Reports/Pulse Opinion Research | Aug 8–9, 2007 | John Edwards | 46% | Rudy Giuliani | 44% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 8–9, 2007 | John Edwards | 47% | Fred Thompson | 41% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 6–7, 2007 | Barack Obama | 44% | Rudy Giuliani | 43% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 6–7, 2007 | Barack Obama | 46% | Fred Thompson | 39% | 800 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Aug 3–5, 2007 | Bill Richardson | 39% | Rudy Giuliani | 47% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Aug 3–5, 2007 | Bill Richardson | 40% | Fred Thompson | 41% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Aug 1–2, 2007 | Barack Obama | 46% | John McCain | 40% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Aug 1–2, 2007 | Hillary Clinton | 45% | John McCain | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jul 30–31, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 46% | 839 LV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jul 30–31, 2007 | Hillary Clinton | 45% | Fred Thompson | 46% | 839 LV | ±3.5% |
| NBC News/Wall Street Journal | Jul 27–30, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 41% | 1,005 A | ±3.1% |
| NBC News/Wall Street Journal | Jul 27–30, 2007 | Barack Obama | 45% | Rudy Giuliani | 40% | 1,005 A | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Jul 27–29, 2007 | Dennis Kucinich | 34% | Rudy Giuliani | 48% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Jul 27–29, 2007 | Dennis Kucinich | 34% | Fred Thompson | 43% | 1,200 LV | ±2.9% |
| Rasmussen Reports/Pulse Opinion Research | Jul 25–26, 2007 | John Edwards | 49% | Rudy Giuliani | 42% | 643 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jul 25–26, 2007 | John Edwards | 50% | Fred Thompson | 39% | 643 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jul 23–24, 2007 | Barack Obama | 47% | Rudy Giuliani | 41% | 1,472 LV | ±2.6% |
| Rasmussen Reports/Pulse Opinion Research | Jul 23–24, 2007 | Barack Obama | 46% | Fred Thompson | 40% | 1,472 LV | ±2.6% |
| Rasmussen Reports/Pulse Opinion Research | Jul 20–22, 2007 | Barack Obama | 50% | Ron Paul | 30% | 1,461 LV | ±2.6% |
| Rasmussen Reports/Pulse Opinion Research | Jul 20–22, 2007 | Hillary Clinton | 49% | Ron Paul | 34% | 1,461 LV | ±2.6% |
| Rasmussen Reports/Pulse Opinion Research | Jul 18–19, 2007 | John Edwards | 45% | Mitt Romney | 38% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jul 18–19, 2007 | John Edwards | 52% | John McCain | 36% | 800 LV | ±4% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Hillary Clinton | 45% | John McCain | 42% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 41% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Hillary Clinton | 47% | Fred Thompson | 38% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Hillary Clinton | 50% | Mitt Romney | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Barack Obama | 45% | Rudy Giuliani | 41% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Barack Obama | 47% | John McCain | 37% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Jul 17–18, 2007 | Barack Obama | 48% | Fred Thompson | 32% | 900 RV | ±3% |
| George Washington University/Tarrance Group/Lake Research Group | Jul 15–18, 2007 | Barack Obama | 52% | Rudy Giuliani | 43% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Jul 15–18, 2007 | Barack Obama | 56% | Fred Thompson | 36% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Jul 15–18, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 50% | 1,000 LV | ±3.1% |
| George Washington University/Tarrance Group/Lake Research Group | Jul 15–18, 2007 | Hillary Clinton | 47% | Fred Thompson | 45% | 1,000 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Jul 16–17, 2007 | Barack Obama | 47% | Mitt Romney | 38% | 1,029 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jul 16–17, 2007 | Barack Obama | 47% | John McCain | 38% | 1,029 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jul 13–15, 2007 | Joe Biden | 37% | Rudy Giuliani | 46% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jul 13–15, 2007 | Joe Biden | 38% | Fred Thompson | 40% | 1,200 LV | ±3% |
| USA Today/Gallup | Jul 12–15, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 49% | 908 RV | ±4% |
| USA Today/Gallup | Jul 12–15, 2007 | Hillary Clinton | 48% | Fred Thompson | 45% | 908 RV | ±4% |
| USA Today/Gallup | Jul 12–15, 2007 | Barack Obama | 45% | Rudy Giuliani | 49% | 908 RV | ±4% |
| USA Today/Gallup | Jul 12–15, 2007 | Barack Obama | 51% | Fred Thompson | 40% | 908 RV | ±4% |
| Zogby America Poll | Jul 12–14, 2007 | Hillary Clinton | 45% | John McCain | 43% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 41% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Hillary Clinton | 48% | Fred Thompson | 41% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Hillary Clinton | 48% | Mitt Romney | 38% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Barack Obama | 45% | John McCain | 42% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Barack Obama | 46% | Rudy Giuliani | 42% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Barack Obama | 48% | Fred Thompson | 40% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | Barack Obama | 49% | Mitt Romney | 35% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | John Edwards | 43% | Rudy Giuliani | 46% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | John Edwards | 43% | John McCain | 43% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | John Edwards | 46% | Fred Thompson | 40% | 1,012 LV | ±3.1% |
| Zogby America Poll | Jul 12–14, 2007 | John Edwards | 47% | Mitt Romney | 38% | 1,012 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Jul 9–10, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jul 9–10, 2007 | Hillary Clinton | 47% | John McCain | 38% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 27–28, 2007 | Hillary Clinton | 45% | Fred Thompson | 45% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 27–28, 2007 | Hillary Clinton | 46% | Mitt Romney | 42% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 25–26, 2007 | John Edwards | 45% | Rudy Giuliani | 45% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 25–26, 2007 | John Edwards | 50% | Fred Thompson | 41% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 22–24, 2007 | Barack Obama | 41% | Rudy Giuliani | 44% | 1,200 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jun 22–24, 2007 | Barack Obama | 43% | Fred Thompson | 41% | 1,200 LV | ±3% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 48% | 907 RV | ±3.5% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Hillary Clinton | 50% | Fred Thompson | 46% | 907 RV | ±3.5% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Hillary Clinton | 49% | John McCain | 47% | 907 RV | ±3.5% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Barack Obama | 46% | Rudy Giuliani | 48% | 907 RV | ±3.5% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Barack Obama | 52% | Fred Thompson | 40% | 907 RV | ±3.5% |
| CNN/Opinion Research Corporation | Jun 22–24, 2007 | Barack Obama | 48% | John McCain | 44% | 907 RV | ±3.5% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 44% | 844 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Hillary Clinton | 45% | Fred Thompson | 40% | 844 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Hillary Clinton | 48% | Mitt Romney | 38% | 844 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Barack Obama | 42% | Rudy Giuliani | 41% | 844 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Barack Obama | 46% | Fred Thompson | 35% | 844 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 21–23, 2007 | Barack Obama | 47% | Mitt Romney | 34% | 844 RV | ±3.4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Hillary Clinton | 51% | Rudy Giuliani | 44% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Hillary Clinton | 53% | Fred Thompson | 42% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Hillary Clinton | 50% | John McCain | 45% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Hillary Clinton | 55% | Mitt Romney | 40% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Barack Obama | 49% | Rudy Giuliani | 44% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Barack Obama | 53% | Fred Thompson | 39% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Barack Obama | 51% | John McCain | 41% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | Barack Obama | 53% | Mitt Romney | 37% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | John Edwards | 48% | Rudy Giuliani | 46% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | John Edwards | 54% | Fred Thompson | 38% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | John Edwards | 50% | John McCain | 44% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jun 20–21, 2007 | John Edwards | 57% | Mitt Romney | 36% | 831 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 20–21, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 46% | 792 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 20–21, 2007 | Hillary Clinton | 46% | John McCain | 42% | 792 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 18–19, 2007 | Bill Richardson | 38% | Rudy Giuliani | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 18–19, 2007 | Bill Richardson | 35% | Fred Thompson | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 15–17, 2007 | John Edwards | 49% | John McCain | 36% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 15–17, 2007 | John Edwards | 51% | Mitt Romney | 33% | 800 LV | ±4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 42% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Hillary Clinton | 42% | Fred Thompson | 42% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Hillary Clinton | 45% | Mitt Romney | 38% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Barack Obama | 42% | Rudy Giuliani | 42% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Barack Obama | 46% | Fred Thompson | 33% | 855 RV | ±3.4% |
| Cook Political Report/RT Strategies | Jun 15–17, 2007 | Barack Obama | 47% | Mitt Romney | 31% | 855 RV | ±3.4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 13–14, 2007 | Barack Obama | 46% | John McCain | 38% | 800 LV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Hillary Clinton | 50% | Rudy Giuliani | 46% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Hillary Clinton | 49% | John McCain | 46% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Hillary Clinton | 53% | Mitt Romney | 40% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Barack Obama | 50% | Rudy Giuliani | 45% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Barack Obama | 48% | John McCain | 46% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | Barack Obama | 57% | Mitt Romney | 36% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | John Edwards | 50% | Rudy Giuliani | 45% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | John Edwards | 50% | John McCain | 44% | 927 RV | ±4% |
| USA Today/Gallup | Jun 11–14, 2007 | John Edwards | 61% | Mitt Romney | 32% | 927 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 11–12, 2007 | Hillary Clinton | 48% | Fred Thompson | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 11–12, 2007 | Hillary Clinton | 50% | Mitt Romney | 41% | 800 LV | ±4% |
| NBC News/Wall Street Journal | Jun 8–11, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 43% | 1,008 A | ±3.1% |
| NBC News/Wall Street Journal | Jun 8–11, 2007 | Barack Obama | 50% | Fred Thompson | 31% | 1,008 A | ±3.1% |
| Quinnipiac University | Jun 5–11, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 44% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Hillary Clinton | 44% | John McCain | 42% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Hillary Clinton | 46% | Fred Thompson | 39% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Barack Obama | 42% | Rudy Giuliani | 42% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Barack Obama | 43% | John McCain | 41% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Barack Obama | 46% | Fred Thompson | 34% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Al Gore | 45% | Rudy Giuliani | 43% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Al Gore | 44% | John McCain | 41% | 1,711 RV | ±2.4% |
| Quinnipiac University | Jun 5–11, 2007 | Al Gore | 49% | Fred Thompson | 37% | 1,711 RV | ±2.4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Hillary Clinton | 41% | John McCain | 45% | 513 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Hillary Clinton | 39% | Rudy Giuliani | 49% | 513 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Hillary Clinton | 41% | Mitt Romney | 43% | 513 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | John Edwards | 40% | John McCain | 45% | 513 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | John Edwards | 46% | Mitt Romney | 32% | 513 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Barack Obama | 46% | Rudy Giuliani | 41% | 543 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Barack Obama | 47% | John McCain | 35% | 543 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | Barack Obama | 50% | Mitt Romney | 34% | 543 RV | ±4% |
| Los Angeles Times/Bloomberg | Jun 7–10, 2007 | John Edwards | 46% | Rudy Giuliani | 43% | 543 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 6–7, 2007 | John Edwards | 47% | Rudy Giuliani | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 6–7, 2007 | John Edwards | 51% | Fred Thompson | 38% | 800 LV | ±4% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 45% | 900 RV | ±3% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Hillary Clinton | 43% | John McCain | 43% | 900 RV | ±3% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Hillary Clinton | 48% | Fred Thompson | 38% | 900 RV | ±3% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Hillary Clinton | 46% | Mitt Romney | 36% | 900 RV | ±3% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Barack Obama | 41% | Rudy Giuliani | 46% | 900 RV | ±3% |
| FOX News/Opinion Dynamics Poll | Jun 5–6, 2007 | Barack Obama | 47% | Fred Thompson | 34% | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jun 4–5, 2007 | Barack Obama | 39% | Rudy Giuliani | 51% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jun 4–5, 2007 | Barack Obama | 47% | Fred Thompson | 44% | 800 LV | ±4% |
| USA Today/Gallup | Jun 1–3, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 52% | 1,004 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | May 30–31, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 47% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 30–31, 2007 | Hillary Clinton | 42% | John McCain | 48% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 29, 2007 | Bill Richardson | 39% | Rudy Giuliani | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 29, 2007 | Bill Richardson | 38% | John McCain | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 21–22, 2007 | Hillary Clinton | 48% | Mike Huckabee | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 21–22, 2007 | Hillary Clinton | 49% | Sam Brownback | 41% | 800 LV | ±4% |
| Zogby International | May 17–20, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 48% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Hillary Clinton | 43% | John McCain | 47% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Hillary Clinton | 48% | Fred Thompson | 41% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Hillary Clinton | 48% | Mitt Romney | 40% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Barack Obama | 48% | Rudy Giuliani | 42% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Barack Obama | 46% | John McCain | 43% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Barack Obama | 52% | Fred Thompson | 35% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Barack Obama | 52% | Mitt Romney | 35% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | John Edwards | 43% | Rudy Giuliani | 47% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | John Edwards | 41% | John McCain | 46% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | John Edwards | 48% | Fred Thompson | 40% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | John Edwards | 50% | Mitt Romney | 36% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Bill Richardson | 35% | Rudy Giuliani | 50% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Bill Richardson | 31% | John McCain | 52% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Bill Richardson | 39% | Fred Thompson | 40% | 993 LV | ±3.2% |
| Zogby International | May 17–20, 2007 | Bill Richardson | 40% | Mitt Romney | 37% | 993 LV | ±3.2% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 45% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | Hillary Clinton | 45% | John McCain | 43% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | Barack Obama | 43% | Rudy Giuliani | 41% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | Barack Obama | 42% | John McCain | 39% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | John Edwards | 42% | Rudy Giuliani | 43% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 16–20, 2007 | John Edwards | 44% | John McCain | 39% | 800 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | May 16–17, 2007 | John Edwards | 53% | Fred Thompson | 32% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 16–17, 2007 | John Edwards | 54% | Mitt Romney | 33% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 14–15, 2007 | Barack Obama | 49% | Fred Thompson | 42% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 14–15, 2007 | Barack Obama | 49% | Mitt Romney | 37% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 9–10, 2007 | Hillary Clinton | 47% | Fred Thompson | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 9–10, 2007 | Hillary Clinton | 47% | Mitt Romney | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 7–8, 2007 | John Edwards | 47% | Rudy Giuliani | 45% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | May 7–8, 2007 | John Edwards | 48% | John McCain | 41% | 800 LV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 46% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Hillary Clinton | 50% | John McCain | 44% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Hillary Clinton | 57% | Mitt Romney | 35% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Barack Obama | 50% | Rudy Giuliani | 43% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Barack Obama | 52% | John McCain | 39% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | Barack Obama | 58% | Mitt Romney | 29% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | John Edwards | 50% | Rudy Giuliani | 44% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | John Edwards | 52% | John McCain | 42% | 831 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | May 2–3, 2007 | John Edwards | 64% | Mitt Romney | 27% | 831 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 30 – May 1, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 45% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 30 – May 1, 2007 | Hillary Clinton | 48% | John McCain | 44% | 800 LV | ±4% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 43% | 822 RV | ±3.5% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | Hillary Clinton | 47% | John McCain | 42% | 822 RV | ±3.5% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | Barack Obama | 41% | Rudy Giuliani | 43% | 822 RV | ±3.5% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | John Edwards | 49% | Rudy Giuliani | 43% | 822 RV | ±3.5% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | Barack Obama | 39% | John McCain | 46% | 822 RV | ±3.5% |
| WNBC/Marist College | Apr 26 – May 1, 2007 | John Edwards | 49% | John McCain | 39% | 822 RV | ±3.5% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 49% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Barack Obama | 41% | Rudy Giuliani | 44% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Al Gore | 41% | Rudy Giuliani | 48% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Hillary Clinton | 41% | John McCain | 46% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Barack Obama | 42% | John McCain | 42% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Al Gore | 41% | John McCain | 47% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Hillary Clinton | 46% | Fred Thompson | 39% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Barack Obama | 47% | Fred Thompson | 34% | 1,166 RV | ±2.9% |
| Quinnipiac University | Apr 25 – May 1, 2007 | Al Gore | 47% | Fred Thompson | 37% | 1,166 RV | ±2.9% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Hillary Clinton | 41% | Rudy Giuliani | 44% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Hillary Clinton | 42% | John McCain | 43% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Hillary Clinton | 47% | Mitt Romney | 33% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Barack Obama | 45% | Rudy Giuliani | 36% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Barack Obama | 46% | John McCain | 34% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | Barack Obama | 50% | Mitt Romney | 23% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | John Edwards | 44% | Rudy Giuliani | 38% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | John Edwards | 45% | John McCain | 36% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Apr 26–30, 2007 | John Edwards | 49% | Mitt Romney | 24% | 801 RV | ±3.5% |
| NBC News/Wall Street Journal | Apr 20–23, 2007 | Barack Obama | 45% | John McCain | 39% | 1,004 A | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Apr 18–19, 2007 | Barack Obama | 43% | Rudy Giuliani | 46% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 18–19, 2007 | Barack Obama | 47% | Fred Thompson | 37% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 11–12, 2007 | Bill Richardson | 34% | Rudy Giuliani | 51% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 11–12, 2007 | Bill Richardson | 42% | Mitt Romney | 34% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 9–10, 2007 | Barack Obama | 48% | John McCain | 42% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 9–10, 2007 | Barack Obama | 52% | Mitt Romney | 37% | 800 LV | ±4% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 48% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Barack Obama | 45% | Rudy Giuliani | 45% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Hillary Clinton | 49% | Mitt Romney | 37% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Barack Obama | 54% | Mitt Romney | 31% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Hillary Clinton | 44% | John McCain | 46% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | April 5–9, 2007 | Barack Obama | 47% | John McCain | 42% | 1,102 RV | ±3% |
| Los Angeles Times/Bloomberg | April 5−9, 2007 | Barack Obama | 48% | John McCain | 40% | 603 RV | ±4% |
| Los Angeles Times/Bloomberg | April 5−9, 2007 | Hillary Clinton | 45% | John McCain | 42% | 603 RV | ±4% |
| Los Angeles Times/Bloomberg | April 5−9, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 48% | 603 RV | ±4% |
| Los Angeles Times/Bloomberg | April 5−9, 2007 | Barack Obama | 46% | Rudy Giuliani | 42% | 603 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 4–5, 2007 | John Edwards | 49% | Rudy Giuliani | 43% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 4–5, 2007 | John Edwards | 50% | Fred Thompson | 36% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 2–3, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 48% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Apr 2–3, 2007 | Hillary Clinton | 47% | John McCain | 46% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Mar 28–29, 2007 | Barack Obama | 43% | Rudy Giuliani | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Mar 28–29, 2007 | Barack Obama | 52% | Mike Huckabee | 32% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Mar 26–27, 2007 | John Edwards | 47% | John McCain | 38% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Mar 26–27, 2007 | John Edwards | 55% | Mitt Romney | 29% | 800 LV | ±4% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Hillary Clinton | 41% | Rudy Giuliani | 50% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Barack Obama | 44% | Rudy Giuliani | 45% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Hillary Clinton | 42% | John McCain | 48% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Barack Obama | 43% | John McCain | 45% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Hillary Clinton | 51% | Mitt Romney | 34% | 1,102 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | March 23–26, 2007 | Barack Obama | 53% | Mitt Romney | 29% | 1,102 RV | ±3% |
| McLaughlin & Associates | March 21–25, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 42% | 1,000 LV | ±3.1% |
| McLaughlin & Associates | March 21–25, 2007 | Hillary Clinton | 38% | John McCain | 44% | 1,000 LV | ±3.1% |
| McLaughlin & Associates | March 21–25, 2007 | Barack Obama | 38% | Rudy Giuliani | 40% | 1,000 LV | ±3.1% |
| McLaughlin & Associates | March 21–25, 2007 | Barack Obama | 39% | John McCain | 38% | 1,000 LV | ±3.1% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | March 20–25, 2007 | Hillary Clinton | 46% | John McCain | 48% | 763 LV | Not reported |
| Democracy Corps/Greenberg Quinlan Rosner (D) | March 20–25, 2007 | Barack Obama | 50% | John McCain | 44% | 763 LV | Not reported |
| Rasmussen Reports/Pulse Opinion Research | Mar 21–22, 2007 | Hillary Clinton | 43% | Fred Thompson | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Mar 21–22, 2007 | Barack Obama | 49% | Fred Thompson | 37% | 800 LV | ±4% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Mar 9–12, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 47% | 1,500 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Mar 9–12, 2007 | Hillary Clinton | 44% | John McCain | 43% | 1,500 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Mar 9–12, 2007 | Barack Obama | 44% | Rudy Giuliani | 43% | 1,500 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Mar 9–12, 2007 | Barack Obama | 44% | John McCain | 41% | 1,500 RV | ±3% |
| American Research Group | Mar 2–5, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 48% | 2,104 LV | ±2.2% |
| American Research Group | Mar 2–5, 2007 | Barack Obama | 41% | Rudy Giuliani | 46% | 2,104 LV | ±2.2% |
| American Research Group | Mar 2–5, 2007 | Hillary Clinton | 42% | John McCain | 45% | 2,104 LV | ±2.2% |
| American Research Group | Mar 2–5, 2007 | Barack Obama | 42% | John McCain | 46% | 2,104 LV | ±2.2% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 47% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Barack Obama | 43% | Rudy Giuliani | 48% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | John Edwards | 45% | Rudy Giuliani | 47% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Hillary Clinton | 47% | John McCain | 46% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Barack Obama | 45% | John McCain | 43% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | John Edwards | 48% | John McCain | 43% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Hillary Clinton | 53% | Mitt Romney | 38% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | Barack Obama | 54% | Mitt Romney | 34% | 1,202 RV | ±3% |
| Newsweek/Princeton Survey Research Associates International | Feb 28 – Mar 1, 2007 | John Edwards | 58% | Mitt Romney | 30% | 1,202 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Feb 23–26, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 47% | 1,144 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Feb 23–26, 2007 | Hillary Clinton | 46% | John McCain | 45% | 1,144 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Feb 23–26, 2007 | Barack Obama | 42% | Rudy Giuliani | 47% | 1,144 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Feb 23–26, 2007 | Barack Obama | 46% | John McCain | 42% | 1,144 RV | ±3% |
| Zogby International | Feb 22–24, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 47% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | Hillary Clinton | 39% | John McCain | 47% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | Hillary Clinton | 45% | Mitt Romney | 35% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | Barack Obama | 46% | Rudy Giuliani | 40% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | Barack Obama | 44% | John McCain | 40% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | Barack Obama | 51% | Mitt Romney | 29% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | John Edwards | 40% | Rudy Giuliani | 46% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | John Edwards | 38% | John McCain | 47% | 1,078 LV | ±3% |
| Zogby International | Feb 22–24, 2007 | John Edwards | 47% | Mitt Romney | 32% | 1,078 LV | ±3% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | February 19, 2007 | Hillary Clinton | 44% | John McCain | 46% | 1,014 LV | Not reported |
| Quinnipiac University | Feb 13–19, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 48% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | Hillary Clinton | 44% | John McCain | 46% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | Hillary Clinton | 49% | Mitt Romney | 37% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | Barack Obama | 40% | Rudy Giuliani | 47% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | Barack Obama | 43% | John McCain | 43% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | Barack Obama | 49% | Mitt Romney | 29% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | John Edwards | 40% | Rudy Giuliani | 48% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | John Edwards | 42% | John McCain | 43% | 1,536 RV | ±2.5% |
| Quinnipiac University | Feb 13–19, 2007 | John Edwards | 48% | Mitt Romney | 32% | 1,536 RV | ±2.5% |
| Rasmussen Reports/Pulse Opinion Research | Feb 14–15, 2007 | Hillary Clinton | 48% | Chuck Hagel | 40% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Feb 14–15, 2007 | Barack Obama | 50% | Chuck Hagel | 34% | 800 LV | ±4% |
| WNBC/Marist College | Feb 12–15, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 47% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | Barack Obama | 41% | Rudy Giuliani | 45% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | John Edwards | 44% | Rudy Giuliani | 44% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | Hillary Clinton | 46% | John McCain | 46% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | Barack Obama | 41% | John McCain | 44% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | John Edwards | 43% | John McCain | 44% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | Hillary Clinton | 49% | Mitt Romney | 36% | 978 RV | ±3.5% |
| WNBC/Marist College | Feb 12–15, 2007 | Hillary Clinton | 56% | Newt Gingrich | 36% | 978 RV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Feb 13–14, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Feb 13–14, 2007 | Barack Obama | 39% | Rudy Giuliani | 45% | 900 RV | ±3% |
| USA Today/Gallup | Feb 9–11, 2007 | Hillary Clinton | 50% | John McCain | 47% | 1,006 A | ±3% |
| USA Today/Gallup | Feb 9–11, 2007 | Hillary Clinton | 48% | Rudy Giuliani | 50% | 1,006 A | ±3% |
| USA Today/Gallup | Feb 9–11, 2007 | Barack Obama | 48% | John McCain | 48% | 1,006 A | ±3% |
| USA Today/Gallup | Feb 9–11, 2007 | Barack Obama | 43% | Rudy Giuliani | 52% | 1,006 A | ±3% |
| Times Union/Siena College | Feb 6–9, 2007 | Hillary Clinton | 45% | John McCain | 44% | 1,120 RV | ±2.9% |
| Times Union/Siena College | Feb 6–9, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 45% | 1,120 RV | ±2.9% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | January 28, 2007 | Hillary Clinton | 47% | John McCain | 48% | 1,002 LV | Not reported |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Hillary Clinton | 50% | John McCain | 44% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Barack Obama | 48% | John McCain | 42% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | John Edwards | 48% | John McCain | 44% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 46% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Barack Obama | 47% | Rudy Giuliani | 44% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | John Edwards | 46% | Rudy Giuliani | 47% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Hillary Clinton | 56% | Mitt Romney | 37% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | Barack Obama | 56% | Mitt Romney | 30% | 837 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 24–25, 2007 | John Edwards | 60% | Mitt Romney | 26% | 837 RV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jan 22–23, 2007 | Bill Richardson | 34% | Rudy Giuliani | 49% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jan 22–23, 2007 | Bill Richardson | 39% | John McCain | 43% | 800 LV | ±4% |
| Time/Schulman, Ronca, & Bucuvalas, Inc. (SRBI) | Jan 22–23, 2007 | Hillary Clinton | 47% | John McCain | 47% | 1,064 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas, Inc. (SRBI) | Jan 22–23, 2007 | Barack Obama | 42% | John McCain | 49% | 1,064 RV | ±3% |
| Time/Schulman, Ronca, & Bucuvalas, Inc. (SRBI) | Jan 22–23, 2007 | John Edwards | 42% | John McCain | 49% | 1,064 RV | ±3% |
| Cook Political Report/RT Strategies | Jan 18–21, 2007 | Hillary Clinton | 42% | John McCain | 48% | 872 RV | ±3.3% |
| ABC News/Washington Post | Jan 16–19, 2007 | Hillary Clinton | 50% | John McCain | 45% | 1,000 A | ±3% |
| ABC News/Washington Post | Jan 16–19, 2007 | Barack Obama | 47% | John McCain | 45% | 1,000 A | ±3% |
| ABC News/Washington Post | Jan 16–19, 2007 | Barack Obama | 45% | Rudy Giuliani | 49% | 1,000 A | ±3% |
| ABC News/Washington Post | Jan 16–19, 2007 | Hillary Clinton | 49% | Rudy Giuliani | 47% | 1,000 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jan 17–18, 2007 | Barack Obama | 47% | John McCain | 44% | 800 LV | ±4% |
| Rasmussen Reports/Pulse Opinion Research | Jan 17–18, 2007 | John Edwards | 46% | John McCain | 43% | 800 LV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | Hillary Clinton | 48% | John McCain | 47% | 896 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | Barack Obama | 46% | John McCain | 44% | 896 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | John Edwards | 48% | John McCain | 43% | 896 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | Hillary Clinton | 47% | Rudy Giuliani | 48% | 896 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | Barack Obama | 45% | Rudy Giuliani | 47% | 896 RV | ±4% |
| Newsweek/Princeton Survey Research Associates International | Jan 17–18, 2007 | John Edwards | 48% | Rudy Giuliani | 45% | 896 RV | ±4% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | January 16, 2007 | Hillary Clinton | 44% | John McCain | 49% | 1,000 LV | Not reported |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | Hillary Clinton | 39% | John McCain | 48% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | Barack Obama | 38% | John McCain | 43% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | John Edwards | 35% | John McCain | 45% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 48% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | Barack Obama | 38% | Rudy Giuliani | 41% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jan 11–14, 2007 | John Edwards | 41% | Rudy Giuliani | 40% | 800 RV | ±3.5% |
| George Washington University Battleground Poll | Jan 8–11, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 53% | 1,000 LV | ±3.1% |
| George Washington University Battleground Poll | Jan 8–11, 2007 | Hillary Clinton | 43% | John McCain | 53% | 1,000 LV | ±3.1% |
| George Washington University Battleground Poll | Jan 8–11, 2007 | Barack Obama | 41% | Rudy Giuliani | 50% | 1,000 LV | ±3.1% |
| George Washington University Battleground Poll | Jan 8–11, 2007 | Barack Obama | 39% | John McCain | 51% | 1,000 LV | ±3.1% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 48% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Barack Obama | 36% | Rudy Giuliani | 49% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | John Edwards | 42% | Rudy Giuliani | 47% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Hillary Clinton | 41% | John McCain | 48% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Barack Obama | 36% | John McCain | 48% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | John Edwards | 43% | John McCain | 44% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Hillary Clinton | 48% | Mitt Romney | 35% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | Barack Obama | 43% | Mitt Romney | 31% | 951 A | ±3% |
| Investor's Business Daily/TIPP | Jan 2–4, 2007 | John Edwards | 53% | Mitt Romney | 29% | 951 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 18–19, 2006 | Al Gore | 43% | Rudy Giuliani | 46% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 18–19, 2006 | Hillary Clinton | 43% | Rudy Giuliani | 47% | 1,000 LV | ±3% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Barack Obama | 43% | John McCain | 47% | 1019 | ±4.5% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Barack Obama | 42% | Rudy Giuliani | 49% | 1019 | ±4.5% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Barack Obama | 51% | Mitt Romney | 35% | 1019 | ±4.5% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Al Gore | 47% | John McCain | 46% | 1019 | ±4.5% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Al Gore | 46% | Rudy Giuliani | 46% | 1019 | ±4.5% |
| CNN/Opinion Research Corporation | Dec 15–17, 2006 | Al Gore | 53% | Mitt Romney | 37% | 1019 | ±4.5% |
| Rasmussen Reports/Pulse Opinion Research | Dec 14–15, 2006 | Hillary Clinton | 45% | John McCain | 49% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 14–15, 2006 | Al Gore | 44% | John McCain | 49% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 12–13, 2006 | John Edwards | 41% | John McCain | 46% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 12–13, 2006 | Barack Obama | 40% | John McCain | 46% | 1,000 LV | ±3% |
| Los Angeles Times/Bloomberg | Dec 8–11, 2006 | Hillary Clinton | 36% | John McCain | 50% | 1,555 A | ±3% |
| Los Angeles Times/Bloomberg | Dec 8–11, 2006 | Hillary Clinton | 42% | Mitt Romney | 36% | 1,555 A | ±3% |
| NBC News/Wall Street Journal | Dec 8–11, 2006 | Hillary Clinton | 43% | John McCain | 47% | Not reported | ±3.3% |
| NBC News/Wall Street Journal | Dec 8–11, 2006 | Barack Obama | 38% | John McCain | 43% | Not reported | ±3.3% |
| NBC News/Wall Street Journal | Dec 8–11, 2006 | John Edwards | 43% | John McCain | 41% | Not reported | ±3.3% |
| NBC News/Wall Street Journal | Dec 8–11, 2006 | Hillary Clinton | 47% | Mitt Romney | 37% | Not reported | ±3.3% |
| NPR/Public Opinion Strategies/Greenberg Quinlan Rosner | Dec 7, 9–10, 2006 | Hillary Clinton | 41% | John McCain | 48% | 800 LV | ±3.46% |
| NPR/Public Opinion Strategies/Greenberg Quinlan Rosner | Dec 7, 9–10, 2006 | Barack Obama | 43% | Mitt Romney | 27% | 800 LV | ±3.46% |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Hillary Clinton | 50% | John McCain | 43% | 1,000 A | Not reported |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Hillary Clinton | 48% | Rudy Giuliani | 47% | 1,000 A | Not reported |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Hillary Clinton | 58% | Mitt Romney | 32% | 1,000 A | Not reported |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Barack Obama | 43% | John McCain | 45% | 1,000 A | Not reported |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Barack Obama | 44% | Rudy Giuliani | 47% | 1,000 A | Not reported |
| Newsweek/Princeton Survey Research Associates International | Dec 6–7, 2006 | Barack Obama | 55% | Mitt Romney | 25% | 1,000 A | Not reported |
| Fox News/Opinion Dynamics Corporation | Dec 5–6, 2006 | Barack Obama | 35% | Rudy Giuliani | 46% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 5–6, 2006 | Hillary Clinton | 39% | Rudy Giuliani | 48% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 5–6, 2006 | Barack Obama | 30% | John McCain | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 5–6, 2006 | Hillary Clinton | 40% | John McCain | 48% | 900 RV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 4–5, 2006 | Barack Obama | 47% | Mitt Romney | 38% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Dec 4–5, 2006 | John Edwards | 50% | Mitt Romney | 37% | 1,000 LV | ±3% |
| WNBC/Marist College | Nov 27 – Dec 3, 2006 | Hillary Clinton | 43% | Rudy Giuliani | 49% | 967 RV | ±3.5% |
| WNBC/Marist College | Nov 27 – Dec 3, 2006 | Hillary Clinton | 43% | John McCain | 49% | 967 RV | ±3.5% |
| WNBC/Marist College | Nov 27 – Dec 3, 2006 | Hillary Clinton | 47% | Condoleezza Rice | 43% | 967 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Nov 28–29, 2006 | Barack Obama | 48% | Newt Gingrich | 38% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 28–29, 2006 | Hillary Clinton | 50% | Newt Gingrich | 41% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 13–14, 2006 | John Edwards | 43% | John McCain | 47% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 13–14, 2006 | John Edwards | 41% | Rudy Giuliani | 50% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 13–14, 2006 | John Edwards | 50% | Mike Huckabee | 33% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 13–14, 2006 | John Edwards | 51% | Mitt Romney | 34% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 10–11, 2006 | Tom Vilsack | 32% | John McCain | 49% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 10–11, 2006 | Tom Vilsack | 39% | Mitt Romney | 35% | 1,000 LV | ±3% |
| Diageo/The Hotline/Financial Dynamics | Nov 8–12, 2006 | Hillary Clinton | 40% | John McCain | 45% | 1,005 RV | ±3.1% |
| Diageo/The Hotline/Financial Dynamics | Nov 8–12, 2006 | John Edwards | 35% | John McCain | 42% | 1,005 RV | ±3.1% |
| Diageo/The Hotline/Financial Dynamics | Nov 8–12, 2006 | Barack Obama | 35% | John McCain | 39% | 1,005 RV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Nov 8–9, 2006 | Al Gore | 41% | John McCain | 48% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 8–9, 2006 | Al Gore | 44% | Rudy Giuliani | 47% | 1,000 LV | ±3% |
| McLaughlin & Associates | Nov 7, 2006 | Hillary Clinton | 35% | John McCain | 51% | 1,000 LV | ±3.1% |
| McLaughlin & Associates | Nov 7, 2006 | Hillary Clinton | 37% | Rudy Giuliani | 51% | 1,000 LV | ±3.1% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Barack Obama | 39% | John McCain | 47% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Barack Obama | 39% | Rudy Giuliani | 48% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Barack Obama | 48% | Mitt Romney | 33% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Barack Obama | 50% | Mike Huckabee | 31% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Hillary Clinton | 43% | John McCain | 48% | 1,000 LV | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Nov 6–7, 2006 | Hillary Clinton | 46% | Rudy Giuliani | 46% | 1,000 LV | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | Hillary Clinton | 47% | John McCain | 48% | 1,008 A | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | Hillary Clinton | 47% | Rudy Giuliani | 47% | 1,008 A | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | Barack Obama | 40% | John McCain | 49% | 1,008 A | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | Barack Obama | 41% | Rudy Giuliani | 50% | 1,008 A | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | John Kerry | 37% | John McCain | 55% | 1,008 A | ±3% |
| CNN/Opinion Research Corporation | Nov 3–5, 2006 | John Kerry | 40% | Rudy Giuliani | 53% | 1,008 A | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 24–25, 2006 | Clinton/Obama | 40% | McCain/Giuliani | 48% | 900 LV | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 24–25, 2006 | Barack Obama | 38% | John McCain | 41% | 900 LV | ±3% |
| Fox News/Opinion Dynamics Corporation | Oct 24–25, 2006 | Hillary Clinton | 39% | John McCain | 45% | 900 LV | ±3% |
| CNN/Opinion Research Corporation | Oct 13–15, 2006 | Hillary Clinton | 51% | John McCain | 44% | Not reported | ±4.5% |
| CNN/Opinion Research Corporation | Oct 13–15, 2006 | Hillary Clinton | 48% | Rudy Giuliani | 47% | Not reported | ±4.5% |
| CNN/Opinion Research Corporation | Oct 13–15, 2006 | Hillary Clinton | 47% | John McCain | 48% | Not reported | ±4.5% |
| CNN/Opinion Research Corporation | Oct 13–15, 2006 | Hillary Clinton | 50% | Rudy Giuliani | 46% | Not reported | ±4.5% |
| WNBC/Marist College | Sep 18–20, 2006 | Hillary Clinton | 43% | John McCain | 48% | 1,018 RV | ±3% |
| WNBC/Marist College | Sep 18–20, 2006 | Hillary Clinton | 42% | Rudy Giuliani | 49% | 1,018 RV | ±3% |
| WNBC/Marist College | Sep 18–20, 2006 | Hillary Clinton | 49% | Condoleezza Rice | 43% | 1,018 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Aug 29–30, 2006 | Hillary Clinton | 39% | John McCain | 47% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Aug 29–30, 2006 | Hillary Clinton | 42% | Rudy Giuliani | 46% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Aug 29–30, 2006 | Al Gore | 40% | John McCain | 47% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Aug 29–30, 2006 | Al Gore | 42% | Rudy Giuliani | 46% | 900 RV | ±3% |
| Diageo/The Hotline/Financial Dynamics | Jul 20–23, 2006 | Hillary Clinton | 37% | John McCain | 49% | 800 RV | ±3.5% |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Jul 13–17, 2006 | Hillary Clinton | 47% | John McCain | 49% | 902 RV | Not reported |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Jul 13–17, 2006 | John Kerry | 42% | John McCain | 52% | 902 RV | Not reported |
| Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI) | Jul 13–17, 2006 | Al Gore | 43% | John McCain | 52% | 902 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics | Jun 21–25, 2006 | Hillary Clinton | 40% | John McCain | 50% | 800 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | Jun 21–25, 2006 | John Edwards | 36% | John McCain | 49% | 800 RV | ±3.5% |
| Cook Political Report/RT Strategies | Jun 1–4, 2006 | Hillary Clinton | 40% | John McCain | 47% | 874 RV | Not reported |
| Diageo/The Hotline/Financial Dynamics | May 18–21, 2006 | Hillary Clinton | 38% | John McCain | 49% | 801 RV | ±3.5% |
| Diageo/The Hotline/Financial Dynamics | May 18–21, 2006 | Al Gore | 33% | John McCain | 51% | 801 RV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Hillary Clinton | 51% | Jeb Bush | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Hillary Clinton | 42% | John McCain | 46% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Hillary Clinton | 40% | Rudy Giuliani | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Al Gore | 50% | Jeb Bush | 33% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Al Gore | 36% | John McCain | 48% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | May 16–18, 2006 | Al Gore | 37% | Rudy Giuliani | 50% | 900 RV | ±3% |
| NBC News/Wall Street Journal | Apr 21–24, 2006 | Hillary Clinton | 37% | John McCain | 46% | 1,005 A | ±3.1% |
| Cook Political Report/RT Strategies | Apr 6–9, 2006 | Hillary Clinton | 37% | John McCain | 46% | Not reported | ±3.1% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | Hillary Clinton | 39% | John McCain | 50% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | John Kerry | 33% | John McCain | 53% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | Al Gore | 34% | John McCain | 52% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | Hillary Clinton | 39% | Rudy Giuliani | 51% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | Hillary Clinton | 50% | Dick Cheney | 37% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Mar 14–15, 2006 | Al Gore | 48% | Dick Cheney | 36% | 900 RV | ±3% |
| Cook Political Report/RT Strategies | Feb 23–26, 2006 | Hillary Clinton | 36% | John McCain | 48% | Not reported | Not reported |
| Diageo/The Hotline/Financial Dynamics | Feb 16–19, 2006 | Hillary Clinton | 40% | John McCain | 50% | 807 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Kerry | 45% | Rudy Giuliani | 48% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Kerry | 37% | John McCain | 54% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Kerry | 44% | Condoleezza Rice | 50% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Edwards | 44% | Rudy Giuliani | 47% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Edwards | 41% | John McCain | 47% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | John Edwards | 51% | Condoleezza Rice | 42% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | Al Gore | 42% | Rudy Giuliani | 53% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | Al Gore | 38% | John McCain | 55% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | Hillary Clinton | 47% | Rudy Giuliani | 48% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | Hillary Clinton | 42% | John McCain | 52% | 931 RV | ±3.5% |
| WNBC/Marist College | Feb 13–15, 2006 | Hillary Clinton | 49% | Condoleezza Rice | 44% | 931 RV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Feb 7–8, 2006 | Hillary Clinton | 38% | John McCain | 51% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Feb 7–8, 2006 | John Kerry | 33% | John McCain | 53% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Feb 7–8, 2006 | Hillary Clinton | 40% | Rudy Giuliani | 51% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Feb 7–8, 2006 | John Kerry | 34% | Rudy Giuliani | 53% | 900 RV | ±3% |
| Diageo/The Hotline/Financial Dynamics | Jan 12–15, 2006 | Hillary Clinton | 36% | John McCain | 52% | 806 RV | ±3.5% |
| Zogby Interactive | Dec 6–8, 2005 | Hillary Clinton | 37% | John McCain | 52% | 1,013 LV | ±3.1% |
| Zogby Interactive | Dec 6–8, 2005 | Hillary Clinton | 46% | Condoleezza Rice | 47% | 1,013 LV | ±3.1% |
| Zogby Interactive | Dec 6–8, 2005 | John Kerry | 34% | John McCain | 55% | 1,013 LV | ±3.1% |
| Zogby Interactive | Dec 6–8, 2005 | John Kerry | 45% | Condoleezza Rice | 48% | 1,013 LV | ±3.1% |
| Zogby Interactive | Dec 6–8, 2005 | Mark Warner | 23% | John McCain | 58% | 1,013 LV | ±3.1% |
| Zogby Interactive | Dec 6–8, 2005 | Mark Warner | 32% | Condoleezza Rice | 50% | 1,013 LV | ±3.1% |
| Quinnipiac University | Nov 28 – Dec 4, 2005 | Hillary Clinton | 40% | John McCain | 44% | 1,230 RV | ±2.8% |
| Diageo/The Hotline/Financial Dynamics | Nov 11–15, 2005 | Hillary Clinton | 39% | John McCain | 52% | 700 RV | ±3.7% |
| NBC News/Wall Street Journal | Nov 4–7, 2005 | Hillary Clinton | 42% | John McCain | 44% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 4–7, 2005 | Hillary Clinton | 50% | Bill Frist | 37% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 4–7, 2005 | John Kerry | 35% | John McCain | 53% | Not reported | Not reported |
| NBC News/Wall Street Journal | Nov 4–7, 2005 | John Kerry | 45% | Bill Frist | 35% | Not reported | Not reported |
| WNBC/Marist College | Oct 12–13, 17, 2005 | Hillary Clinton | 43% | Rudy Giuliani | 50% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | Hillary Clinton | 41% | John McCain | 50% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | Hillary Clinton | 50% | Condoleezza Rice | 41% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Kerry | 40% | Rudy Giuliani | 53% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Kerry | 40% | John McCain | 51% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Kerry | 46% | Condoleezza Rice | 45% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Edwards | 43% | Rudy Giuliani | 48% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Edwards | 41% | John McCain | 49% | 827 RV | ±3.5% |
| WNBC/Marist College | Oct 12–13, 17, 2005 | John Edwards | 49% | Condoleezza Rice | 42% | 827 RV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | Hillary Clinton | 39% | Rudy Giuliani | 50% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | Hillary Clinton | 38% | John McCain | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | Hillary Clinton | 46% | Condoleezza Rice | 43% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | John Kerry | 36% | Rudy Giuliani | 52% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | John Kerry | 35% | John McCain | 53% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | John Kerry | 43% | Condoleezza Rice | 45% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | Al Gore | 29% | John McCain | 57% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Sep 27–28, 2005 | Al Gore | 32% | Rudy Giuliani | 55% | 900 RV | ±3% |
| Gallup | July 25–28, 2005 | John Kerry | 41% | John McCain | 54% | 922 RV | ±4% |
| Gallup | July 25–28, 2005 | John Kerry | 41% | Rudy Giuliani | 54% | 922 RV | ±4% |
| Zogby Interactive | Jun 20–22, 2005 | Hillary Clinton | 35% | John McCain | 54% | 1,000 LV | ±3.2% |
| Zogby Interactive | Jun 20–22, 2005 | John Kerry | 35% | John McCain | 55% | 1,000 LV | ±3.2% |
| Rasmussen Reports/Pulse Opinion Research | Apr 25–26, 2005 | Hillary Clinton | 38% | John McCain | 45% | 1,000 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Apr 25–26, 2005 | Hillary Clinton | 40% | Rudy Giuliani | 42% | 1,000 A | ±3% |
| Marist College | Apr 18–21, 2005 | Hillary Clinton | 42% | John McCain | 50% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | Hillary Clinton | 46% | Rudy Giuliani | 47% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | John Kerry | 41% | John McCain | 51% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | Hillary Clinton | 55% | Jeb Bush | 38% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | John Kerry | 46% | Rudy Giuliani | 48% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | John Edwards | 43% | John McCain | 46% | 838 RV | ±3.5% |
| Marist College | Apr 18–21, 2005 | John Edwards | 48% | Rudy Giuliani | 45% | 838 RV | ±3.5% |
| Moore Information | Mar 21–23, 2005 | Hillary Clinton | 38% | John McCain | 49% | 800 RV | ±3% |
| Moore Information | Mar 21–23, 2005 | Hillary Clinton | 41% | Rudy Giuliani | 47% | 800 RV | ±3% |
| Democracy Corps/Greenberg Quinlan Rosner (D) | Mar 15–21, 2005 | Hillary Clinton | 50% | Jeb Bush | 47% | 501 LV | Not reported |
| Quinnipiac University | Mar 2–7, 2005 | Hillary Clinton | 43% | Rudy Giuliani | 44% | 1,534 RV | ±2.5% |
| Quinnipiac University | Mar 2–7, 2005 | Hillary Clinton | 41% | John McCain | 43% | 1,534 RV | ±2.5% |
| The Hotline/Westhill Partners | Feb 24–27, 2005 | Bill Richardson | 36% | Arnold Schwarzenegger | 27% | 800 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | Hillary Clinton | 42% | John McCain | 54% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | John Kerry | 37% | John McCain | 55% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | Hillary Clinton | 47% | Rudy Giuliani | 49% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | John Kerry | 44% | Rudy Giuliani | 50% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | John Edwards | 39% | John McCain | 51% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | John Edwards | 43% | Rudy Giuliani | 49% | 851 RV | ±3.5% |
| Marist College | Feb 14–16, 2005 | Hillary Clinton | 51% | Condoleezza Rice | 43% | 851 RV | ±3.5% |
| Rasmussen Reports/Pulse Opinion Research | Jan 29–30, 2005 | Hillary Clinton | 47% | Condoleezza Rice | 40% | 1,000 A | ±3% |
| Rasmussen Reports/Pulse Opinion Research | Jan 29–30, 2005 | John Kerry | 43% | Condoleezza Rice | 45% | 1,000 A | ±3% |
| The Hotline/Westhill Partners | Jan 25–27, 2005 | Hillary Clinton | 46% | Jeb Bush | 37% | 800 RV | ±3.5% |
| Fox News/Opinion Dynamics Corporation | Dec 14–15, 2004 | John Kerry | 45% | Jeb Bush | 37% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 14–15, 2004 | Hillary Clinton | 46% | Jeb Bush | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 14–15, 2004 | Hillary Clinton | 41% | George Pataki | 35% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Dec 14–15, 2004 | Hillary Clinton | 40% | Bill Frist | 33% | 900 RV | ±3% |
| Quinnipiac University | Dec 7–12, 2004 | Hillary Clinton | 43% | Rudy Giuliani | 45% | 1,529 RV | ±2.5% |
| Fox News/Opinion Dynamics Corporation | Nov 16–17, 2004 | Hillary Clinton | 38% | Rudy Giuliani | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 16–17, 2004 | Hillary Clinton | 37% | John McCain | 53% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 16–17, 2004 | John Kerry | 41% | Rudy Giuliani | 49% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 16–17, 2004 | John Kerry | 38% | John McCain | 50% | 900 RV | ±3% |
| Fox News/Opinion Dynamics Corporation | Nov 16–17, 2004 | John Edwards | 38% | Rudy Giuliani | 50% | 900 RV | ±3% |

### Three-way contest

See
| Poll Source | Date | Democrat(s) | % | Republican(s) | % | Independent(s) | % |
| Fox News/Opinion Dynamics | January 30–31, 2008 | Hillary Clinton | 41% | John McCain | 41% | Michael Bloomberg | 6% |
| Fox News/Opinion Dynamics | January 30–31, 2008 | Hillary Clinton | 46% | Mitt Romney | 30% | Michael Bloomberg | 8% |
| Rasmussen Reports Poll | Nov 9–11, 2007 | Hillary Clinton | 43% | Rudy Giuliani | 38% | Michael Bloomberg | 11% |
| Rasmussen Reports Poll | Oct 19–21, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 35% | Stephen Colbert | 13% |
| Rasmussen Reports Poll | Oct 19–21, 2007 | Hillary Clinton | 46% | Fred Thompson | 34% | Stephen Colbert | 12% |
| Rasmussen Reports Poll | Sep 25–26, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 32% | Mike Bloomberg | 7% |
| NBC News/Wall Street Journal Poll | July 27–30, 2007 | Hillary Clinton | 42% | Rudy Giuliani | 34% | Michael Bloomberg | 11% |
| Zogby America Poll | July 12–14, 2007 | Hillary Clinton | 41% | John McCain | 36% | Mike Bloomberg | 11% |
| Zogby America Poll | July 12–14, 2007 | Hillary Clinton | 44% | Rudy Giuliani | 37% | Mike Bloomberg | 7% |
| Zogby America Poll | July 12–14, 2007 | Hillary Clinton | 44% | Fred Thompson | 37% | Mike Bloomberg | 8% |
| Zogby America Poll | July 12–14, 2007 | Hillary Clinton | 44% | Mitt Romney | 32% | Mike Bloomberg | 10% |
| Zogby America Poll | July 12–14, 2007 | Barack Obama | 43% | Rudy Giuliani | 39% | Mike Bloomberg | 6% |
| Zogby America Poll | July 12–14, 2007 | Barack Obama | 41% | John McCain | 37% | Mike Bloomberg | 9% |
| Zogby America Poll | July 12–14, 2007 | Barack Obama | 44% | Fred Thompson | 36% | Mike Bloomberg | 7% |
| Zogby America Poll | July 12–14, 2007 | Barack Obama | 45% | Mitt Romney | 29% | Mike Bloomberg | 9% |
| Zogby America Poll | July 12–14, 2007 | John Edwards | 39% | Rudy Giuliani | 41% | Mike Bloomberg | 9% |
| Zogby America Poll | July 12–14, 2007 | John Edwards | 39% | John McCain | 36% | Mike Bloomberg | 11% |
| Zogby America Poll | July 12–14, 2007 | John Edwards | 42% | Fred Thompson | 37% | Mike Bloomberg | 8% |
| Zogby America Poll | July 12–14, 2007 | John Edwards | 43% | Mitt Romney | 31% | Mike Bloomberg | 10% |
| Daily News Poll | July 10–12, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 33% | Michael Bloomberg | 10% |
| USA Today/Gallup Poll | July 6–8, 2007 | Hillary Clinton | 45% | Rudy Giuliani | 39% | Michael Bloomberg | 12% |
| FOX News/Opinion Dynamics Poll | June 26–27, 2007 | Hillary Clinton | 39% | Rudy Giuliani | 37% | Michael Bloomberg | 7% |
| CNN/Opinion Research Corporation Poll | June 22–24, 2007 | Hillary Clinton | 41% | Rudy Giuliani | 38% | Michael Bloomberg | 17% |
| CNN/Opinion Research Corporation Poll | June 22–24, 2007 | Barack Obama | 40% | John McCain | 34% | Michael Bloomberg | 21% |
| Newsweek Poll | June 20–21, 2007 | Hillary Clinton | 46% | Rudy Giuliani | 37% | Michael Bloomberg | 11% |
| Newsweek Poll | June 20–21, 2007 | Hillary Clinton | 48% | Fred Thompson | 33% | Michael Bloomberg | 13% |
| Newsweek Poll | June 20–21, 2007 | Hillary Clinton | 46% | John McCain | 35% | Michael Bloomberg | 13% |
| Newsweek Poll | June 20–21, 2007 | Barack Obama | 44% | Rudy Giuliani | 38% | Michael Bloomberg | 11% |
| Newsweek Poll | June 20–21, 2007 | Barack Obama | 47% | Fred Thompson | 32% | Michael Bloomberg | 14% |
| Newsweek Poll | June 20–21, 2007 | Barack Obama | 46% | John McCain | 35% | Michael Bloomberg | 11% |
| Rasmussen Reports (New Jersey) Poll | June 3, 2007 | Hillary Clinton | 38% | Rudy Giuliani | 29% | Michael Bloomberg | 21% |
| Rasmussen Reports (New Jersey) Poll | June 3, 2007 | Barack Obama | 32% | Fred Thompson | 20% | Michael Bloomberg | 32% |
| Rasmussen Reports (New Jersey) Poll | June 3, 2007 | John Edwards | 34% | Mitt Romney | 18% | Michael Bloomberg | 32% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Hillary Clinton | 40% | Rudy Giuliani | 46% | Ralph Nader | 5% |
| Cook Political Report/RT Strategies Poll | Dec 14–17, 2006 | Hillary Clinton | 37% | Rudy Giuliani | 28% | John McCain | 20% |
| NBC News/Wall Street Journal Poll | Dec 8–11, 2006 | Hillary Clinton | 40% | John McCain | 39% | Michael Bloomberg | 10% |
| WNBC/Marist Poll | Nov 27 – Dec 3, 2006 | Hillary Clinton | 41% | Rudy Giuliani | 45% | Donald Trump | 7% |
| WNBC/Marist Poll | Sep 18–20, 2006 | Hillary Clinton | 39% | Rudy Giuliani | 44% | Michael Bloomberg | 8% |
| Diageo/Hotline Poll | Nov 11–15, 2005 | Hillary Clinton | 34% | Jeb Bush | 18% | John McCain | 40% |
| Diageo/Hotline Poll | Nov 11–15, 2005 | Hillary Clinton | 35% | Condoleezza Rice | 20% | John McCain | 35% |

#### Support likelihood

| Poll Source | Date | Candidate | Support | Consider | Oppose | Never Heard Of | Unsure |
| WNBC/Marist Poll | Feb 12–15, 2007 | Hillary Clinton | 25% | 30% | 43% | | 2% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Barack Obama | 17% | 42% | 32% | | 9% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Al Gore | 12% | 33% | 52% | | 3% |
| WNBC/Marist Poll | Feb 12–15, 2007 | John Edwards | 12% | 45% | 35% | | 8% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Rudy Giuliani | 16% | 51% | 30% | | 3% |
| WNBC/Marist Poll | Feb 12–15, 2007 | John McCain | 14% | 44% | 37% | | 5% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Newt Gingrich | 6% | 25% | 64% | | 5% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Mitt Romney | 7% | 25% | 44% | | 24% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Hillary Clinton | 18% | 34% | 44% | | 3% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Rudy Giuliani | 15% | 44% | 36% | | 5% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Barack Obama | 12% | 45% | 34% | | 10% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | John McCain | 9% | 43% | 40% | | 8% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | John Edwards | 7% | 39% | 45% | | 9% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Newt Gingrich | 7% | 19% | 64% | | 9% |
| FOX News/Opinion Dynamics Poll | Feb 13–14, 2007 | Ralph Nader | 3% | 14% | 76% | | 8% |
| Newsweek Poll | Nov 9–10, 2006 | Hillary Clinton | 33% | 20% | 45% | 0% | 2% |
| Newsweek Poll | Nov 9–10, 2006 | Rudy Giuliani | 24% | 30% | 32% | 10% | 4% |
| Newsweek Poll | Nov 9–10, 2006 | Condoleezza Rice | 24% | 27% | 43% | 4% | 2% |
| Newsweek Poll | Nov 9–10, 2006 | Al Gore | 21% | 24% | 53% | 0% | 2% |
| Newsweek Poll | Nov 9–10, 2006 | John McCain | 20% | 34% | 32% | 10% | 4% |
| Newsweek Poll | Nov 9–10, 2006 | Barack Obama | 20% | 19% | 24% | 34% | 3% |
| Newsweek Poll | Nov 9–10, 2006 | John Kerry | 16% | 24% | 55% | 2% | 3% |
| Newsweek Poll | Nov 9–10, 2006 | John Edwards | 15% | 28% | 36% | 16% | 5% |
| Newsweek Poll | Nov 9–10, 2006 | Newt Gingrich | 10% | 17% | 58% | 12% | 3% |
| Newsweek Poll | Nov 9–10, 2006 | Joe Biden | 7% | 17% | 34% | 36% | 6% |
| Newsweek Poll | Nov 9–10, 2006 | Mitt Romney | 6% | 13% | 27% | 48% | 6% |
| Newsweek Poll | Nov 9–10, 2006 | Sam Brownback | 3% | 7% | 23% | 61% | 6% |
| Newsweek Poll | Nov 9–10, 2006 | Duncan Hunter | 1% | 6% | 19% | 69% | 5% |
| Time Poll | Oct 3–4, 2006 | Rudy Giuliani | 17% | 55% | 19% | | 18% |
| Time Poll | Oct 3–4, 2006 | Hillary Rodham Clinton | 23% | 36% | 37% | | 5% |
| Time Poll | Oct 3–4, 2006 | John McCain | 12% | 56% | 19% | | 13% |
| Time Poll | Oct 3–4, 2006 | Al Gore | 16% | 44% | 35% | | 5% |
| Time Poll | Oct 3–4, 2006 | John Kerry | 14% | 43% | 34% | | 9% |
| Time Poll | Jul 13–17, 2006 | Rudy Giuliani | 17% | 54% | 14% | | 15% |
| Time Poll | Jul 13–17, 2006 | Hillary Rodham Clinton | 19% | 41% | 34% | | 6% |
| Time Poll | Jul 13–17, 2006 | John McCain | 12% | 52% | 13% | | 22% |
| Time Poll | Jul 13–17, 2006 | Al Gore | 16% | 45% | 32% | | 7% |
| Time Poll | Jul 13–17, 2006 | John Kerry | 12% | 48% | 30% | | 10% |
| CNN Poll | Jun 1–6, 2006 | Hillary Rodham Clinton | 22% | 28% | 47% | | 3% |
| CNN Poll | Jun 1–6, 2006 | Al Gore | 17% | 32% | 48% | | 3% |
| CNN Poll | Jun 1–6, 2006 | John Kerry | 14% | 35% | 47% | | 4% |
| CNN Poll | Jun 1–6, 2006 | Rudolph Giuliani | 19% | 45% | 30% | | 6% |
| CNN Poll | Jun 1–6, 2006 | John McCain | 12% | 48% | 34% | | 6% |
| CNN Poll | Jun 1–6, 2006 | Jeb Bush | 9% | 26% | 63% | | 2% |
| ABC News/Washington Post Poll | May 11–15, 2006 | Hillary Clinton | 19% | 38% | 42% | | 1% |
| ABC News/Washington Post Poll | May 11–15, 2006 | John McCain | 9% | 57% | 28% | | 6% |
| FOX News/Opinion Dynamics Poll | Feb 7–8, 2006 | Hillary Clinton | 35% | 19% | 44% | | 2% |
| FOX News/Opinion Dynamics Poll | Feb 7–8, 2006 | Rudy Giuliani | 33% | 38% | 24% | | 6% |
| FOX News/Opinion Dynamics Poll | Feb 7–8, 2006 | John McCain | 30% | 40% | 22% | | 7% |
| FOX News/Opinion Dynamics Poll | Feb 7–8, 2006 | John Kerry | 29% | 23% | 45% | | 3% |
| FOX News/Opinion Dynamics Poll | Feb 7–8, 2006 | Condoleezza Rice | 14% | 38% | 46% | | 3% |
| CNN/USA Today/Gallup Poll | Jan 20–22, 2006 | Hillary Rodham Clinton | 16% | 32% | 51% | | 1% |
| Diageo/Hotline Poll | Nov 11–15, 2005 | John McCain | 23% | 46% | 15% | | 15% |
| CNN/USA Today/Gallup Poll | May 20–22, 2005 | Hillary Rodham Clinton | 28% | 31% | 40% | | 1% |
| CNN/USA Today/Gallup Poll | Jun 9–10, 2003 | Hillary Rodham Clinton | 20% | 33% | 45% | | 2% |

### Other polls
#### Candidate distinctions

Would you be willing to vote for a female presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 88% | 11% |
| Times Union/Siena College Poll | Feb 6–9, 2007 | 81% | 12% |
| Newsweek Poll | Dec 6–7, 2006 | 86% | 8% |
| CBS News/New York Times Poll | Jan 20–25, 2006 | 92% | 5% |
| Rasmussen Reports Poll | Apr 6–7, 2005 | 72% | 17% |
Would you be willing to vote for an African American presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 94% | 5% |
| Rasmussen Reports Poll | Jan 17–18, 2007 | 79% | 12% |
| Newsweek Poll | Dec 6–7, 2006 | 93% | 3% |
Would you be willing to vote for a Mormon (a member of the Church of Jesus Christ of Latter-day Saints) presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 72% | 24% |
| Newsweek Poll | Dec 6–7, 2006 | 66% | 25% |
| Rasmussen Reports | Nov 20, 2006 | 38% | 43% |
Would you be willing to vote for a Roman Catholic presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 95% | 4% |
Would you be willing to vote for a Jewish presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 92% | 7% |
Would you be willing to vote for a Hispanic presidential candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 87% | 12% |
Would you be willing to vote for a thrice-married candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 67% | 30% |
| Poll Source | Date | Comfortable | Reservations | Uncomfortable |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 54% | 13% | 30% |
Would you be willing to vote for a seventy-two year old candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 57% | 42% |
| Poll Source | Date | Comfortable | Reservations | Uncomfortable |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 43% | 15% | 42% |
Would you be willing to vote for a homosexual candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 55% | 43% |
Would you be willing to vote for an atheist candidate in 2008?
| Poll Source | Date | Yes | No |
| USA Today/Gallup Poll | Feb 9–11, 2007 | 45% | 53% |

#### Candidate quality
##### If elected, would the following candidate make a good president or a bad president?

| Poll Source | Date | Candidate | Good | Bad | Unsure |
| USA Today/Gallup Poll | Feb 9–11, 2007 | Rudy Giuliani | 65% | 19% | 15% |
| USA Today/Gallup Poll | Feb 9–11, 2007 | Hillary Clinton | 60% | 35% | 5% |
| USA Today/Gallup Poll | Feb 9–11, 2007 | John McCain | 60% | 20% | 20% |
| USA Today/Gallup Poll | Feb 9–11, 2007 | Barack Obama | 53% | 19% | 28% |

#### Candidate ideology

Do you think the following candidate is too liberal, too conservative, or about right?
| Poll Source | Date | Candidate | Too Liberal % | Too Conservative % | About Right % | Unsure % |
| WNBC/Marist Poll | Feb 12–15, 2007 | Rudy Giuliani | 16% | 16% | 51% | 17% |
| WNBC/Marist Poll | Feb 12–15, 2007 | Hillary Clinton | 39% | 6% | 44% | 11% |