# Nationwide opinion polling for the 2008 Democratic Party presidential primaries

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This is a collection of scientific, public nationwide opinion polls that have been conducted relating to the 2008 Democratic presidential candidates.

## 2008
### After Jan.

| Poll source | Sample size | Margin of error | Date(s) administered | Hillary Clinton | Barack Obama | Other | Undecided/None |
| Gallup | 1,279 | ±3% | May 25–28, 2008 | 42% | 52% | 2% | 4% |
| Rasmussen Reports | 900 | ±4% | May 25–28, 2008 | 44% | 47% | – | – |
| Pew Research Center | 618 | ±4.5% | May 21–25, 2008 | 41% | 54% | – | 5% |
| Newsweek | 608 | ±5% | May 21–22, 2008 | 42% | 50% | 8% | 8% |
| Reuters/Zogby | – | – | May 15–18, 2008 | 33% | 59% | 8% | 8% |
| Quinnipiac University | – | – | May 8–12, 2008 | 41% | 45% | – | 14% |
| ABC News/Washington Post | 620 | ±4% | May 8–11, 2008 | 41% | 53% | 4% | 2% |
| USA Today/Gallup | 516 | | May 1–4, 2008 | 51% | 44% | 5% | 5% |
| Ipsos Public Affairs | 514 | ±4.3% | Apr. 30–May 4, 2008 | 47% | 40% | 1% | 12% |
| CBS News/New York Times | 283 | ±5% | May 1–3, 2008 | 38% | 50% | – | 9% |
| Diageo/Hotline | 374 | ±5.1% | Apr. 30–May 3, 2008 | 37% | 48% | 5% | 8% |
| CNN/Opinion Research | 441 | ±4.5% | Apr. 28–30, 2008 | 45% | 46% | – | 9% |
| Fox News/Opinion Dynamics | 400 | ±5% | Apr. 28–29, 2008 | 44% | 41% | 8% | 7% |
| CBS News/New York Times | 402 | ±5% | Apr. 25–29, 2008 | 38% | 46% | – | 14% |
| NBC News/WSJ | – | ±4.2% | Apr. 25–28, 2008 | 43% | 46% | 4% | 7% |
| Pew Research Center | 651 | ±4.5% | Apr. 23–27, 2008 | 45% | 47% | – | 8% |
| Associated Press/Ipsos | 457 | ±4.6% | Apr. 23–27, 2008 | 43% | 46% | 5% | 6% |
| Newsweek | 592 | ±5% | Apr. 24–25, 2008 | 41% | 48% | 11% | 11% |
| USA Today/Gallup | 552 | ±5% | Apr. 18–20, 2008 | 40% | 50% | 2% | 8% |
| Newsweek | 588 | ±5% | Apr. 16–17, 2008 | 35% | 54% | 11% | 11% |
| ABC News/Washington Post | 643 | ±4% | Apr. 10–13, 2008 | 41% | 51% | 3% | 5% |
| Reuters/Zogby | 532 | ±4.3% | Apr. 10–12, 2008 | 38% | 51% | – | – |
| Associated Press/Ipsos | 489 | ±4.4% | Apr. 7–9, 2008 | 43% | 46% | 3% | 8% |
| CBS News/New York Times | 469 | – | March 28–Apr. 2, 2008 | 43% | 46% | 3% | 8% |
| Diageo/Hotline | 342 | ±5.3% | March 28–31, 2008 | 38% | 50% | 6% | 6% |
| NBC News/WSJ | 384 | – | March 24–25, 2008 | 45% | 45% | 2% | 8% |
| Pew Research Center | 618 | ±3% | March 19–22, 2008 | 39% | 49% | – | 12% |
| Fox News/Opinion Dynamics | 388 | ±5% | March 18–19, 2008 | 30% | 31% | 24% | 14% |
| CBS News | 1,067 | ±3% | March 15–18, 2008 | 37% | 39% | 10% | 14% |
| USA Today/Gallup | 530 | ±5% | March 14–16, 2008 | 42% | 49% | 2% | 8% |
| CNN/Opinion Research | 463 | ±4.5% | March 14–16, 2008 | 45% | 52% | – | – |
| Reuters/Zogby | 525 | ±4.4% | March 13–14, 2008 | 44% | 47% | – | – |
| NBC News/WSJ | – | – | March 7–10, 2008 | 47% | 43% | – | – |
| ABC News/Washington Post | 629 | ±4% | Feb. 28 – March 2, 2008 | 43% | 50% | 7% | – |
| Los Angeles Times/Bloomberg | – | – | Feb. 21–25, 2008 | 42% | 48% | 5% | 5% |
| Associated Press/Ipsos | 473 | ±4.6% | Feb. 22–24, 2008 | 43% | 46% | 5% | 6% |
| USA Today/Gallup | 1,009 | ±3% | Feb. 21–24, 2008 | 39% | 51% | – | – |
| Pew Research | 633 | – | Feb. 20–24, 2008 | 40% | 49% | 2% | 9% |
| CBS News/New York Times | 427 | ±5% | Feb. 20–24, 2008 | 38% | 54% | 1% | 7% |
| Fox News | – | ±3% | Feb. 19–20, 2008 | 44% | 44% | 2% | 9% |
| Diageo/Hotline | 361 | ±5.1% | Feb. 14–17, 2008 | 45% | 43% | 2% | 9% |
| Reuters/Zogby | 494 | ±4.5% | Feb. 13–16, 2008 | 38% | 52% | – | – |
| Associated Press/Ipsos | 520 | ±4.3% | Feb. 7–10, 2008 | 46% | 41% | – | – |
| USA Today/Gallup'''‡''' | 525 | ±5.0% | Feb. 8–9, 2008 | 44% | 47% | 4% | 6% |
| Newsweek'''†''' | 602 | ±3% | Feb. 6–7, 2008 | 41% | 42% | – | 17% |
| CNN/Opinion Research* | 500 | ±4.5% | Feb. 1–3, 2008 | 46% | 49% | – | – |
| Gallup'''*''' | 1,239 | ±3.0% | Feb. 1–3, 2008 | 47% | 43% | 4% | 6% |
| Rasmussen Reports'''*''' | 900 | ±4% | Jan. 31 – Feb. 3, 2008 | 46% | 40% | – | – |
| CBS News/New York Times* | 491 | ±3.0% | Jan. 31 – Feb. 2, 2008 | 41% | 41% | – | 14% |
| Cook Political Report/RT Strategies* | 376 | ±3.1% | Jan. 31 – Feb. 2, 2008 | 37% | 43% | 3% | 17% |
| USA Today/Gallup* | 985 | ±4.0% | Jan. 30 – Feb. 2, 2008 | 45% | 44% | – | – |

### Jan. 2008

| Poll source | Date(s) administered | Hillary Clinton | John Edwards | Barack Obama | Other | Undecided/None | "Other" Candidates |
| ABC/Washington Post Margin of Error: ± 3.0% | Jan. 30 – Feb. 1, 2008 | 47% | 2% | 43% | 5% | [data missing] | |
| USA Today/Gallup Margin of Error: ± 3.0% | Jan. 25–27, 2008 | 44% | 14% | 33% | 2% | 8% | Other 2% |
| NBC News/WSJ Margin of Error: ± 3.1% | Jan. 20–22, 2008 | 47% | 12% | 32% | 4% | 5% | Dennis Kucinich 3%, None 1% |
| Los Angeles Times/Bloomberg | Jan. 18–22, 2008 | 42% | 11% | 33% | 2% | 12% | Dennis Kucinich 1%, Other 1% |
| "Diageo/Hotline" (PDF). Archived from the original (PDF) on 2008-02-08. Retrieved 2008-01-17. (55.8 KiB) | Jan. 10–12, 2008 | 38% | 13% | 35% | 2% | [data missing] | Dennis Kucinich 2% |
| CBS/NYT Poll | Jan. 9–12, 2008 | 42% | 11% | 27% | 4% | 13% | Dennis Kucinich 4% |
| ABC/Washington Post | Jan. 9–12, 2008 | 52% | 11% | 37% | 2% | 3% | Dennis Kucinich 2% |
| CNN/Opinion Research | Jan. 9–10, 2008 | 49% | 12% | 36% | 1% | 2% | Dennis Kucinich 1% |
| USA Today/Gallup | Jan. 4–6, 2008 | 33% | 20% | 33% | 4% | [data missing] | Dennis Kucinich 3%, Bill Richardson 1% |
| Rasmussen Reports | Jan. 3–6, 2008 | 33% | 20% | 29% | 18% | [data missing] | Other Response 18% |

## 2007

| Poll source | Date(s) administered | Joe Biden | Hillary Clinton | John Edwards | Al Gore | Barack Obama | Bill Richardson | Other/Undecided/None | "Other" Candidates |
| Rasmussen Reports | Dec. 17–20, 2007 | 3% | 39% | 17% | – | 27% | 3% | 3% | [data missing] | Dennis Kucinich 3% |
| Reuters/Zogby/ARG | Dec. 12–14, 2007 | 3% | 40% | 13% | – | 32% | 3% | 1% | [data missing] | Chris Dodd 1% |
| Diageo/Hotline | Dec. 10–14, 2007 | 2% | 35% | 14% | – | 30% | 2% | – | [data missing] | |
| Rasmussen Reports | Dec. 9–12, 2007 | – | 36% | 13% | – | 28% | – | – | [data missing] | |
| CNN/Opinion Research | Dec. 6–9, 2007 | 4% | 40% | 14% | – | 30% | 4% | 4% | 4% | Dennis Kucinich 2%, Chris Dodd 2% |
| Rasmussen Reports | Dec. 6–9, 2007 | – | 38% | 13% | – | 27% | – | – | [data missing] | |
| Rasmussen Reports | Dec. 3–6, 2007 | – | 33% | 15% | – | 26% | – | – | [data missing] | |
| Rasmussen Reports | Nov. 30–Dec 3, 2007 | – | 37% | 15% | – | 24% | – | – | [data missing] | |
| USA Today/Gallup | Nov. 30–Dec 2, 2007 | 4% | 39% | 15% | – | 24% | 4% | – | [data missing] | |
| Rasmussen Reports | Nov. 16–19, 2007 | – | 42% | 13% | – | 23% | – | – | [data missing] | |
| Reuters/Zogby/ARG | Nov. 14–17, 2007, | 2% | 38% | 13% | – | 27% | 3% | 2% | [data missing] | Dennis Kucinich 2% |
| CNN/Opinion Research | Nov 2–4, 2007 | 3% | 44% | 14% | – | 25% | 4% | 5% | [data missing] | Chris Dodd 2%, Dennis Kucinich 2%, Mike Gravel 1% |
| Newsweek | Oct. 31–Nov. 1, 2007 | 4% | 43% | 12% | – | 24% | 3% | 4% | [data missing] | Dennis Kucinich 4% |
| Reuters/Zogby/ARG | Oct 24–27, 2007 | 2% | 38% | 12% | – | 24% | 2% | 5% | 18% | Dennis Kucinich 2%, Chris Dodd <1%, Mike Gravel <1%, Someone else 2% |
| CBS News | Oct 26, 2007 | – | 45% | 7% | – | 16% | – | – | [data missing] | |
| Rasmussen Reports | Sep 28 – Oct 1, 2007 | – | 37% | 13% | 32% | 22% | – | – | [data missing] | |
| American Research Group | Sep 27–30, 2007 | 2% | 53% | 13% | – | 20% | 3% | 3% | [data missing] | Mike Gravel 2%, Dennis Kucinich 1% |
| AP-Ipsos | Sep 21–25, 2007 | – | 40% | 12% | – | 26% | 4% | – | [data missing] | |
| Rasmussen Reports | Sep 20–23, 2007 | – | 40% | 15% | – | 28% | 3% | – | [data missing] | |
| Reuters/Zogby | Sep 13–16, 2007 | 3% | 35% | 10% | – | 21% | 3% | – | [data missing] | |
| Cook Political Report/RT Strategies | Sep 13–16, 2007 | 1% | 34% | 12% | 10% | 22% | 2% | 8% | 12% | Dennis Kucinich 2%, Chris Dodd 1%, Other 2% |
| Cook Political Report/RT Strategies | Sep 13–16, 2007 | 2% | 37% | 14% | – | 24% | 3% | 11% | 15% | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1%, Other 2% |
| ABC News/Washington Post | Sep 4–7, 2007 | 3% | 41% | 14% | – | 27% | 2% | 4% | 10% | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1% |
| Fox News | Aug 21–22, 2007 | 2% | 35% | 6% | 10% | 23% | 3% | 4% | 17% | Dennis Kucinich 3%, Chris Dodd 1% |
| Quinnipiac University | Aug 7–13, 2007 | 2% | 36% | 9% | 15% | 21% | 3% | 1% | 11% | Dennis Kucinich 1% |
| American Research Group | Aug 9–12, 2007 | – | 36% | 16% | – | 21% | 7% | – | [data missing] | |
| Rasmussen Reports | Aug 6–12, 2007 | 2% | 40% | 13% | – | 25% | 4% | 4% | [data missing] | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1% |
| American Research Group | Aug 6–12, 2007, MoE ± 4 | 4% | 36% | 16% | – | 21% | 7% | 3% | [data missing] | Chris Dodd 1%, Mike Gravel 1%, Dennis Kucinich 1% |
| Rasmussen Reports | July 31 – Aug 6, 2007 | 3% | 43% | 14% | – | 22% | 3% | 5% | [data missing] | Dennis Kucinich 3%, Mike Gravel 1%, Chris Dodd 1% |
| USA Today/Gallup | Aug 3–5, 2007 | 3% | 42% | 10% | 18% | 19% | 3% | 2% | 4% | Dennis Kucinich 1%, Someone else 1% |
| USA Today/Gallup | Aug 3–5, 2007 | 3% | 48% | 12% | – | 27% | 4% | 1% | 5% | Dennis Kucinich 1%, Someone else 2% |
| Cook Political Report/RT Strategie | Aug 2–5, 2007 | 1% | 39% | 8% | 10% | 21% | 4% | 3% | 14% | Dennis Kucinich 1%, Other 2% |
| Cook Political Report/RT Strategie | Aug 2–5, 2007 | 2% | 43% | 10% | – | 23% | 5% | 3% | 14% | Dennis Kucinich 1%, Other 2% |
| Newsweek | Aug 1–2, 2007 | 3% | 44% | 14% | – | 23% | 1% | 7% | 7% | Dennis Kucinich 2%, Mike Gravel 1%, Chris Dodd 1%, None 4% |
| NBC News/WSJ | July 27–30, 2007 | 5% | 43% | 13% | – | 22% | 6% | 6% | 5% | Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 1%, None (vol.) 2% |
| Pew Research Center | July 25–29, 2007 | 2% | 40% | 11% | 12% | 21% | 2% | 6% | 6% | Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 1%, None (vol.) 2% |
| Diageo/Hotline | July 19–22, 2007 | 2% | 39% | 11% | – | 30% | 2% | 8% | 8% | Dennis Kucinich 3%, All of these (vol.) 1%, None of these (vol.) 4% |
| ABC News/Washington Post | July 18–21, 2007 | 2% | 39% | 9% | 14% | 28% | 2% | 5% | 2% | Dennis Kucinich 1%, None of these (vol.) 2%, Wouldn't vote (vol.) 2% |
| ABC News/Washington Post | July 18–21, 2007 | 2% | 45% | 12% | – | 30% | 3% | 7% | 2% | Dennis Kucinich 1%, Chris Dodd 1%, None of these (vol.) 2%, Other 1%, Wouldn't vote 2% |
| FOX News/Opinion Dynamics | July 17–18, 2007 | 1% | 39% | 9% | 9% | 23% | 2% | 6% | 11% | Dennis Kucinich 3%, Other (vol.) 1%, Wouldn't vote (vol.) 2% |
| FOX News/Opinion Dynamics | July 17–18, 2007 | 1% | 41% | 12% | – | 25% | 2% | 7% | 13% | Dennis Kucinich 4%, Mike Gravel 0%, Other (vol.) 1%, Wouldn't vote (vol.) 2% |
| USA Today/Gallup | July 12–15, 2007 | 3% | 34% | 9% | 16% | 25% | 4% | 2% | 6% | Christopher Dodd 1%, Dennis Kucinich 1% |
| USA Today/Gallup | July 12–15, 2007 | 3% | 40% | 13% | – | 28% | 5% | 2% | 8% | Christopher Dodd 1%, Dennis Kucinich 1% |
| Zogby America | July 12–14, 2007 | 1% | 37% | 11% | – | 25% | 3% | 4% | 18% | Dennis Kucinich 2%, Someone else 2% |
| Harris Interactive | July 6–13, 2007 | 2% | 35% | 14% | 13% | 28% | 5% | 3% | [data missing] | Dennis Kucinich 2%, Wesley Clark 1% |
| American Research Group | July 9–12, 2007 | 2% | 38% | 16% | – | 25% | 3% | 4% | 12% | Wesley Clark 1%, Chris Dodd 1%, Dennis Kucinich 1%, Mike Gravel 1% |
| Rasmussen Reports | July 9–12, 2007 | 2% | 38% | 13% | – | 26% | 3% | 5% | 13% | Dennis Kucinich 2%, Chris Dodd 2%, Mike Gravel 1% |
| Associated Press/Ipsos | July 9–11, 2007 | 2% | 36% | 11% | 15% | 20% | 2% | 5% | 9% | Chris Dodd 1%, None 4% |
| USA Today/Gallup | July 6–8, 2007 | 3% | 37% | 13% | 16% | 21% | 2% | 3% | 5% | Dennis Kucinich 2%, Mike Gravel 1% |
| USA Today/Gallup | July 6–8, 2007 | 4% | 42% | 16% | – | 26% | 4% | 3% | 5% | Dennis Kucinich 2%, Mike Gravel 1% |
| Rasmussen Reports | June 25–28, 2007 | 3% | 39% | 13% | – | 26% | 5% | 4% | 9% | Joe Biden 3%, Dennis Kucinich 3%, Chris Dodd 1% |
| FOX News/Opinion Dynamics | June 26–27, 2007 | 1% | 42% | 14% | 14% | 19% | 1% | 7% | 6% | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1%, Wouldn't vote (vol.) 3% |
| FOX News/Opinion Dynamics | June 26–27, 2007 | 2% | 47% | 13% | – | 21% | 3% | 8% | 7% | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1%, Other (vol.) 1%, Wouldn't vote (vol.) 3% |
| CNN/Opinion Research | June 22–24, 2007 | 2% | 35% | 13% | 16% | 23% | 4% | 1% | [data missing] | Dennis Kucinich 1% |
| CNN/Opinion Research | June 22–24, 2007 | 3% | 43% | 17% | – | 25% | 5% | 2% | [data missing] | Joseph Biden 3%, Dennis Kucinich 2% |
| Cook Political Report/RT Strategies | June 21–23, 2007 | 2% | 32% | 11% | 12% | 22% | 1% | 5% | 15% | Joe Biden 2%, Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 2% |
| Cook Political Report/RT Strategies | June 21–23, 2007 | 3% | 35% | 15% | – | 24% | 1% | 6% | 17% | Joe Biden 3%, Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 3% |
| Newsweek | June 20–21, 2007 | 1% | 43% | 14% | – | 27% | 2% | 6% | 7% | Dennis Kucinich 3%, Michael Bloomberg 1%, Joe Biden 1%, Chris Dodd 1%, Other 1% |
| Rasmussen Reports | June 18–21, 2007 | 4% | 37% | 13% | – | 25% | 4% | 4.5% | 13% | Joe Biden 4%, Dennis Kucinich 3%, Chris Dodd 1%, Mike Gravel 0.5% |
| Cook Political Report/RT Strategies | June 15–17, 2007 | – | 30% | 13% | 9% | 20% | 3% | 5% | 20% | Chris Dodd 1%, Dennis Kucinich 1%, Mike Gravel 1%, Other (vol.) 2% |
| Cook Political Report/RT Strategies | June 15–17, 2007 | 1% | 32% | 16% | – | 22% | 4% | 4% | 21% | Chris Dodd 1%, Dennis Kucinich 1%, Mike Gravel 1%, Other (vol.) 2% |
| USA Today/Gallup | June 11–14, 2007 | 3% | 33% | 11% | 18% | 21% | 5% | 3% | 7% | Dennis Kucinich 1%, Mike Gravel 1%, Someone else 1% |
| USA Today/Gallup | June 11–14, 2007 | 3% | 39% | 13% | – | 26% | 5% | 3% | 8% | Dennis Kucinich 1%, Mike Gravel 1%, Someone else 1% |
| Rasmussen Reports | June 11–14, 2007 | 2% | 38% | 16% | – | 27% | 3% | 3% | [data missing] | Chris Dodd 1%, Dennis Kucinich 1%, Mike Gravel 1% |
| American Research Group | June 9–12, 2007 | 3% | 39% | 13% | – | 19% | 5% | 5% | [data missing] | Wesley Clark 2%, Dennis Kucinich 1%, Chris Dodd 1%, Mike Gravel 1% |
| NBC News/WSJ | June 8–11, 2007 | 4% | 39% | 15% | – | 25% | 4% | 4% | [data missing] | Dennis Kucinich 3%, Chris Dodd 1% |
| Quinnipiac University | June 5–11, 2007 | 1% | 35% | 9% | 18% | 21% | 2% | 3% | 11% | Joe Biden 1%, Dennis Kucinich 1%, Other (vol.) 1%, Wouldn't vote 1% |
| Los Angeles Times/Bloomberg | June 7–10, 2007 | 5% | 33% | 8% | 15% | 22% | 4% | 4% | 9% | Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 1% |
| FOX News/Opinion Dynamics | June 5–6, 2007 | 1% | 36% | 12% | 14% | 23% | 1% | 2% | [data missing] | Dennis Kucinich 1%, Mike Gravel 1% |
| FOX News/Opinion Dynamics | June 5–6, 2007 | 2% | 41% | 15% | – | 26% | 1% | 4% | [data missing] | Dennis Kucinich 2%, Chris Dodd 1%, Mike Gravel 1% |
| AP/Ipsos | June 4–6, 2007 | 1% | 33% | 12% | 20% | 21% | 3% | – | [data missing] | |
| USA Today/Gallup | June 1–3, 2007 | 3% | 29% | 11% | 17% | 30% | 3% | – | [data missing] | |
| USA Today/Gallup | June 1–3, 2007 | 4% | 37% | 13% | – | 36% | 4% | 1% | [data missing] | Mike Gravel 1% |
| ABC News/Washington Post | May 29–June 1, 2007 | 2% | 35% | 8% | 17% | 23% | 2% | 2% | [data missing] | Chris Dodd 1%, Dennis Kucinich 1% |
| Rasmussen Reports | May 21–23, 2007 | – | 35% | 14% | – | 26% | 5% | – | [data missing] | |
| Zogby International | May 17–20, 2007 | 2% | 39% | 11% | – | 24% | 2% | 4% | 17% | Dennis Kucinich 1%, Someone else 3% |
| Diageo/Hotline | May 16–20, 2007 | – | 31% | 10% | 13% | 21% | 2% | 6% | 16% | Dennis Kucinich 2%, Any/all of these (vol.) 2%, None of these (vol.) 2% |
| Rasmussen Reports | May 14–17, 2007 | – | 35% | 18% | – | 25% | 5% | – | [data missing] | |
| Cook Political Report/RT Strategies | May 11–13, 2007 | 1% | 35% | 11% | 10% | 24% | 2% | 4% | 12% | Chris Dodd 2%, Dennis Kucinich 1%, Mike Gravel 1%, Other (vol.) 1% |
| USA Today/Gallup | May 10–13, 2007 | 2% | 35% | 12% | 16% | 26% | 2% | 4% | 4% | Wesley Clark 1%, Al Sharpton 1%, Christopher Dodd 1%, Someone else 1% |
| USA Today/Gallup | May 10–13, 2007 | 2% | 42% | 14% | – | 28% | 3% | 5% | 6% | Wesley Clark 1%, Al Sharpton 1%, Christopher Dodd 1%, Dennis Kucinich 1%, Someone else 1% |
| Rasmussen Reports | May 7–10, 2007 | – | 35% | 14% | – | 33% | 3% | – | [data missing] | |
| CNN/Opinion Research | May 4–6, 2007 | 2% | 38% | 12% | 12% | 24% | 5% | 3% | [data missing] | Chris Dodd 2%, Dennis Kucinich 1% |
| USA Today/Gallup | May 4–6, 2007 | 2% | 38% | 12% | 14% | 23% | 2% | 4% | 4% | Wesley Clark 1%, Dennis Kucinich 1%, Someone else 1%, None (vol.) 1% |
| USA Today/Gallup | May 4–6, 2007 | 2% | 45% | 14% | – | 27% | 3% | 8% | 5% | Wesley Clark 1%, Dennis Kucinich 1%, Someone else 1%, Unsure/None 5% |
| WNBC/Marist | Apr 26 – May 1, 2007 | 2% | 35% | 15% | 9% | 17% | 3% | 2% | 17% | Dennis Kucinich 1%, Chris Dodd 1% |
| Quinnipiac University | Apr 25 – May 1, 2007 | 2% | 32% | 12% | 14% | 18% | 3% | 4% | 15% | Dennis Kucinich 2%, Chris Dodd 1%, Other (vol.) 1% |
| Cook Political Report/RT Strategies | Apr. 27–29, 2007 | 2% | 32% | 16% | 11% | 23% | 4% | 1% | 12% | Chris Dodd 1% |
| NBC News/WSJ | Apr. 20–23, 2007 | 3% | 36% | 20% | – | 31% | 2% | 1% | [data missing] | Dennis Kucinich 1% |
| Pew Research Center | Apr. 18–22, 2007 | 1% | 34% | 18% | 14% | 24% | 1% | 1% | 7% | Dennis Kucinich 1% |
| Rasmussen Reports | Apr. 16–19, 2007 | 1% | 32% | 17% | – | 32% | 3% | 2% | [data missing] | Chris Dodd 1%, Wesley Clark 1% |
| Fox News/Opinion Dynamics | Apr. 17–18, 2007 | 1% | 41% | 12% | 16% | 20% | 2% | 3% | [data missing] | Dennis Kucinich 2%, Chris Dodd 1% |
| USA Today/Gallup | Apr. 13–15, 2007 | 1% | 31% | 16% | 15% | 26% | 3% | 7% | 3% | Al Sharpton 2%, Wesley Clark 1%, Mike Gravel 1%, Dennis Kucinich 1%, Christopher Dodd 1%, None (vol.) 1% |
| USA Today/Gallup | Apr. 13–15, 2007 | 2% | 37% | 19% | – | 29% | 4% | 7% | 3% | Wesley Clark 2%, Al Sharpton 2%, Mike Gravel 1%, Dennis Kucinich 1%, Christopher Dodd 1%, Someone else 1%, None (vol.) 1% |
| Washington Post/ABC News | Apr. 12–15, 2007 | – | 37% | 14% | 17% | 20% | – | – | [data missing] | |
| CNN/Opinion Research | Apr. 10–12, 2007 | 1% | 30% | 12% | 15% | 26% | 3% | 6% | [data missing] | Wesley Clark 3%, Dennis Kucinich 1%, Chris Dodd 1%, Al Sharpton 1% |
| LA Times/Bloomberg | Apr. 9–12, 2007 | 1% | 33% | 14% | 13% | 23% | 3% | – | [data missing] | |
| American Research Group | Apr. 9–12, 2007 | 2% | 36% | 19% | – | 24% | 2% | 3% | [data missing] | Wes Clark 1%, Chris Dodd 1%, Dennis Kucinich 1% |
| USA Today/Gallup | Apr. 2–5, 2007 | 1% | 38% | 15% | 14% | 19% | 2% | 7% | 5% | Wes Clark 3%, Mike Gravel 1%, Someone else 2%, None (vol.) 1% |
| USA Today/Gallup | Apr. 2–5, 2007 | 2% | 43% | 18% | – | 19% | 3% | 7% | 7% | Wes Clark 3%, Mike Gravel 1%, Someone else 2%, None (vol.) 1% |
| Rasmussen Reports | Apr. 2–5, 2007 | – | 34% | 15% | – | 29% | 4% | – | [data missing] | |
| Cook Political Report | Mar 29 – Apr 1, 2007 | 4% | 41% | 19% | – | 17% | 3% | – | [data missing] | |
| Rasmussen Reports | March 26–29, 2007 | – | 33% | 17% | – | 26% | 4% | – | [data missing] | |
| Fox News/Opinion | March 27–28, 2007 | 1% | 36% | 13% | 14% | 18% | 2% | 3% | [data missing] | Dennis Kucinich 2%, Joe Biden 1% |
| Zogby America | Mar. 22–26, 2007 | 2% | 32% | 13% | – | 22% | 2% | 3% | [data missing] | Dennis Kucinich 1% |
| USA Today/Gallup | Mar. 23–25, 2007 | 1% | 35% | 14% | 17% | 22% | 3% | 4% | 4% | Joe Biden 1%, Wesley Clark 1%, None (vol.) 2% |
| USA Today/Gallup | Mar. 23–25, 2007 | 2% | 42% | 17% | – | 24% | 4% | 5% | 5% | Joe Biden 2%, Wesley Clark 2%, Dennis Kucinich 1%, None (vol.) 2% |
| Pew Research Center | Mar. 21–25, 2007 | 1% | 35% | 16% | 12% | 26% | 1% | 3% | 6% | None (vol.) 3% |
| Rasmussen Reports | Mar. 19–22, 2007 | – | 37% | 17% | – | 25% | 3% | – | [data missing] | |
| Rasmussen Reports | Mar. 12–15, 2007 | 3% | 35% | 11% | – | 30% | 5% | 3% | [data missing] | |
| Time | Mar. 9–12, 2007 | 1% | 34% | 10% | 13% | 26% | 2% | 3% | [data missing] | Dennis Kucinich 2%, Al Sharpton 1% |
| CNN | Mar. 9–11, 2007 | 1% | 37% | 12% | 14% | 22% | 3% | 2% | [data missing] | Wesley Clark 1%, Dennis Kucinich 1% |
| Rasmussen Reports | Mar. 5–8, 2007 | – | 38% | 15% | – | 26% | 3% | – | [data missing] | |
| Associated Press-Ipsos | Mar. 5–7, 2007 | 1% | 38% | 10% | 14% | 21% | 4% | – | [data missing] | |
| American Research Group | Mar. 2–5, 2007 | 1% | 34% | 15% | – | 31% | 2% | 3% | [data missing] | Wesley Clark 1%, Christopher Dodd 1%, Dennis Kucinich 1% |
| NBC News/WSJ | Mar. 2–5, 2007 | 2% | 40% | 15% | – | 28% | 5% | 3% | [data missing] | Wesley Clark 1%, Christopher Dodd 1%, Dennis Kucinich 1% |
| USA Today/Gallup | Mar. 2–4, 2007 | 3% | 36% | 9% | 18% | 22% | 1% | 3% | [data missing] | Wesley Clark 2%, Mike Gravel 1% |
| Rasmussen Reports | Feb 26 – Mar 1, 2007 | 3% | 34% | 15% | – | 26% | 3% | – | [data missing] | |
| FOX News/Opinion Dynamics | Feb 27–28, 2007 | 1% | 34% | 12% | 14% | 23% | 1% | 1% | [data missing] | Dennis Kucinich 1% |
| Time | Feb 23–26, 2007 | 2% | 36% | 11% | 13% | 24% | 3% | 2% | [data missing] | Dennis Kucinich 1%, Al Sharpton 1% |
| ABC News/Washington Post | Feb 22–25, 2007 | 1% | 36% | 12% | 14% | 24% | 3% | – | [data missing] | |
| Zogby Poll | Feb 22–24, 2007 | 2% | 33% | 12% | – | 25% | 5% | 1% | [data missing] | Wesley Clark 1% |
| Rasmussen Reports | Feb 19–22, 2007 | 3% | 37% | 13% | – | 26% | 4% | – | [data missing] | |
| Quinnipiac University | Feb 13–19, 2007 | 1% | 38% | 6% | 11% | 23% | 2% | 3% | [data missing] | Wesley Clark 2%, Dennis Kucinich 1% |
| Cook Political Report/RT Strategies | Feb 15–18, 2007 | 1% | 42% | 16% | – | 20% | 5% | 4% | [data missing] | Wesley Clark 1%, Mike Gravel 1%, Dennis Kucinich 1%, Tom Vilsack 1% |
| Rasmussen Reports | Feb 12–15, 2007 | – | 28% | 11% | 10% | 24% | – | – | [data missing] | |
| WNBC/Marist | Feb 12–15, 2007 | 2% | 37% | 11% | 11% | 17% | 2% | 3% | [data missing] | Wesley Clark 1%, Mike Gravel 1%, Al Sharpton 1% |
| USA Today/Gallup | Feb 9–11, 2007 | 1% | 40% | 13% | 14% | 21% | 4% | 2% | [data missing] | Wesley Clark 1%, Christopher Dodd 1% |
| Times Union/Siena College Poll | Feb 6–9, 2007 | 1% | 45% | 10% | 10% | 12% | 2% | 1% | [data missing] | Dennis Kucinich 1% |
| Rasmussen Reports | Feb 5–8, 2007 | – | 28% | 13% | 8% | 23% | – | – | [data missing] | |
| Rasmussen Reports | Jan 29 – Feb 3, 2007 | 3% | 34% | 10% | 10% | 18% | – | 3% | [data missing] | Wesley Clark 3% |
| FOX News/Opinion Dynamics | Jan 30–31, 2007 | 4% | 43% | 12% | 11% | 15% | 2% | – | [data missing] | |
| Time | Jan 22–23, 2007 | 2% | 40% | 11% | 9% | 21% | 4% | 7% | [data missing] | John Kerry 4%, Christopher Dodd 1%, Dennis Kucinich 1%, Al Sharpton 1% |
| CNN/Opinion Research | Jan 19–21, 2007 | 3% | 34% | 15% | 10% | 18% | 2% | 12% | [data missing] | John Kerry 5%, Wesley Clark 2%, Dennis Kucinich 2%, Christopher Dodd 1%, Al Sharpton 1%, Tom Vilsack 1% |
| ABC News/Washington Post | Jan 16–19, 2007 | 3% | 41% | 11% | 10% | 17% | 1% | 10% | [data missing] | John Kerry 8%, Wesley Clark 1%, Dennis Kucinich 1% |
| Gallup | Jan 12–14, 2007 | 5% | 29% | 13% | 11% | 18% | 3% | 12% | [data missing] | John Kerry 8%, Wesley Clark 2%, Christopher Dodd 1%, Al Sharpton 1% |
| Rasmussen Reports | Jan 8–11, 2007 | 4% | 22% | 15% | 7% | 21% | – | 4% | [data missing] | John Kerry 4% |

## Before 2007

| Poll source | Date(s) administered | Joe Biden | Hillary Clinton | John Edwards | Al Gore | John Kerry | Barack Obama | Other | Undecided | "Other" Candidates |
| USA Today/Gallup | Dec 11–14, 2006 | 3% | 33% | 8% | 12% | 6% | 20% | 7% | [data missing] | Wesley Clark 2%, Bill Richardson 2%, Evan Bayh 1%, Christopher Dodd 1%, Tom Vilsack 1% |
| NBC News/WSJ | Dec 8–11, 2006 | 4% | 37% | 14% | – | 11% | 18% | 5% | [data missing] | Evan Bayh 3%, Bill Richardson 2% |
| ABC News/Washington Post | Dec 7–11, 2006 | 2% | 39% | 12% | 10% | 7% | 17% | 5% | [data missing] | Bill Richardson 2%, Evan Bayh 1%, Wesley Clark 1%, Tom Vilsack 1% |
| CNN/Opinion Research | Dec 5–7, 2006 | 2% | 37% | 14% | 14% | 7% | 15% | 6% | 10% | Bill Richardson 2%, Wesley Clark 2%, Tom Vilsack 1%, Evan Bayh 1% |
| FOX News/Opinion Dynamics | Dec 5–6, 2006 | 2% | 33% | 8% | 11% | 6% | 12% | 6% | [data missing] | Evan Bayh 2%, Tom Vilsack 2%, Wesley Clark 1%, Bill Richardson 1% |
| WNBC/Marist | Nov 27 – Dec 3, 2006 | 3% | 33% | 14% | 13% | 5% | 12% | 4% | [data missing] | Evan Bayh 1%, Wesley Clark 1%, Bill Richardson 1%, Tom Vilsack 1% |
| CNN/Opinion Research | Nov 17–19, 2006 | 3% | 33% | 14% | 14% | 7% | 15% | 9% | [data missing] | Wesley Clark 4%, Bill Richardson 3%, Evan Bayh 2% |
| USA Today/Gallup | Nov 9–12, 2006 | 4% | 31% | 10% | 9% | 7% | 19% | 11% | [data missing] | Wesley Clark 3%, Evan Bayh 2%, Bill Richardson 2%, Tom Daschle 1%, Christopher Dodd 1%, Russ Feingold 1%, Tom Vilsack 1% |
| Pew Research Center | Nov 9–12, 2006 | 2% | 39% | 10% | 9% | 7% | 23% | 2% | [data missing] | Russ Feingold 1%, Bill Richardson 1% |
| Cook Political Report/RT Strategies | Nov 9–12, 2006 | 4% | 39% | 11% | – | 6% | 21% | 7% | [data missing] | Wesley Clark 2%, Bill Richardson 2%, Evan Bayh 1%, Russ Feingold 1%, Tom Vilsack 1% |
| McLaughlin & Associates (R) | Nov 7, 2006 | 2% | 31% | 6% | 10% | 10% | 19% | 5% | [data missing] | Evan Bayh 1%, Russ Feingold 1%, Bill Richardson 1% |
| Rasmussen Reports | Nov 4–7, 2006 | – | 29% | 10% | 13% | 4% | 22% | – | [data missing] | |
| CNN/Opinion Research | Oct 27–29, 2006 | 2% | 28% | 13% | 13% | 12% | 17% | 7% | [data missing] | Evan Bayh 2%, Russ Feingold 2%, Bill Richardson 2%, Tom Vilsack 1% |
| WNBC/Marist | Sep 18–20, 2006 | 5% | 35% | 10% | 16% | 9% | – | 10% | [data missing] | Tom Daschle 2%, Mark Warner 2%, Evan Bayh 1%, Wesley Clark 1%, Christopher Dodd 1%, Russ Feingold 1%, Bill Richardson 1%, Tom Vilsack 1% |
| CNN/Opinion Research | Aug 30 – Sep 2, 2006 | 2% | 37% | 11% | 20% | 11% | – | 12% | [data missing] | Russ Feingold 3%, Bill Richardson 3%, Mark Warner 3%, Evan Bayh 2%, Tom Vilsack 1% |
| FOX News/Opinion Dynamics | Aug 29–30, 2006 | 4% | 32% | 9% | 15% | 13% | – | 8% | [data missing] | Wesley Clark 4%, Evan Bayh 2%, Mark Warner 2% |
| Cook Political Report/RT Strategies | Aug 25–27, 2006 | 5% | 32% | 11% | 19% | 9% | – | 12% | [data missing] | Russ Feingold 3%, Evan Bayh 2%, Bill Richardson 2%, Mark Warner 2%, Wesley Clark 1%, Christopher Dodd 1%, Tom Vilsack 1% |
| Pew Research Center | Aug 9–13, 2006 | 6% | 40% | 11% | 18% | 11% | – | 8% | [data missing] | Bill Richardson 4%, Russ Feingold 2%, Mark Warner 2% |
| Cook Political Report/RT Strategies | Jun 1–4, 2006 | 4% | 31% | 14% | 18% | 14% | – | | [data missing] | Wesley Clark 3%, Mark Warner 3%, Evan Bayh 2%, Russ Feingold 2%, Bill Richardson 2%, Christopher Dodd 1%, Tom Vilsack 0% |
| Gallup | Jun 1–4, 2006 | 4% | 36% | 12% | 16% | 11% | – | | [data missing] | Wesley Clark 4%, Russ Feingold 3%, Mark Warner 2% |
| Diageo/Hotline | Apr 19–23, 2006 | 5% | 38% | 13% | – | 14% | – | | [data missing] | Wesley Clark 3%, Russ Feingold 3%, Bill Richardson 2%, Mark Warner 2%, Evan Bayh 1% |
| FOX News/Opinion Dynamics | Mar 14–15, 2006 | 4% | 43% | 11% | 12% | 10% | – | | [data missing] | Wesley Clark 4%, Mark Warner 3%, Evan Bayh 2% |
| WNBC/Marist | Feb 13–15, 2006 | 4% | 33% | 16% | 17% | 11% | – | | [data missing] | Evan Bayh 3%, Wesley Clark 3%, Bill Richardson 3%, Mark Warner 2% |
| CNN/USA Today/Gallup | Feb 9–12, 2006 | 5% | 39% | 12% | 13% | 15% | – | | [data missing] | Mark Warner 5%, Russ Feingold (vol.) 1% |
| CNN/USA Today/Gallup | Dec 9–11, 2005 | 8% | 43% | 14% | – | 14% | – | | [data missing] | Bill Richardson 3%, Mark Warner 3%, Evan Bayh 1%, Tom Vilsack 1% |
| Cook Political Report/RT Strategies | Dec 8–11, 2005 | 7% | 33% | 15% | – | 17% | – | | [data missing] | Russ Feingold 4%, Bill Richardson 4%, Mark Warner 4%, Evan Bayh 3%, Wesley Clark 3%, Tom Vilsack 0% |
| NBC News/WSJ | Dec 6–8, 2005 | 3% | 26% | 12% | – | 9% | 7% | 19% | [data missing] | Joe Lieberman 10%, Wesley Clark 3%, Bill Richardson 3%, Evan Bayh 1%, Tim Kaine 1%, Mark Warner 1% |
| NBC News/WSJ | Nov 4–7, 2005 | 5% | 41% | 14% | 12% | 10% | – | 12% | [data missing] | Wesley Clark 4%, Bill Richardson 3% |
| FOX News/Opinion Dynamics | Oct 12–13, 17, 2005 | 5% | 41% | 14% | – | 17% | – | 7% | [data missing] | Wesley Clark 3%, Evan Bayh 2%, Tom Vilsack 1%, Mark Warner 1% |
| FOX News/Opinion Dynamics | Sep 27–28, 2005 | 5% | 42% | 14% | 11% | 14% | – | 2% | [data missing] | Wesley Clark 1%, Mark Warner 1% |
| Gallup | Aug 5–7, 2005 | 8% | 41% | 15% | – | 16% | – | 13% | [data missing] | Wesley Clark 5%, Evan Bayh 3%, Bill Richardson 3%, Mark Warner 2% |
| Zogby Poll | Jun 20–22, 2005 | 5% | 39% | 12% | 6% | 13% | – | 17% | [data missing] | Howard Dean 6%, Evan Bayh 4%, Wesley Clark 4%, Bill Richardson 3% |
| FOX News/Opinion Dynamics | Jun 14–15, 2005 | 6% | 44% | 13% | – | 17% | – | 4% | [data missing] | Wesley Clark 2%, Evan Bayh 1%, Mark Warner 1% |
| Marist College Poll | Apr 18–21, 2005 | 7% | 40% | 16% | – | 18% | – | 7% | [data missing] | Wesley Clark 4%, Russ Feingold 2%, Bill Richardson 1% |
| Marist College Poll | Feb 14–16, 2005 | 5% | 39% | 15% | – | 21% | – | 10% | [data missing] | Wesley Clark 4%, Russ Feingold 2%, Bill Richardson 2%, Evan Bayh 1%, Mark Warner 1% |
| Ipsos-Public Affairs Poll | Dec 17–19, 2004 | – | 33% | 15% | – | 19% | – | 11% | [data missing] | Wesley Clark 11% |

## Three-way contest

| Poll Source | Date | Hillary Clinton | John Edwards | John Kerry | Barack Obama | Tom Vilsack |
| Rasmussen Reports | July 16–22, 2007 | 38% | 14% | – | 25% | – |
| CBS News/New York Times Poll | July 9–17, 2007 | 43% | 16% | – | 24% | – |
| Rasmussen Reports | July 9–15, 2007 | 38% | 13% | – | 26% | – |
| CBS News/New York Times Poll | June 26–28, 2007 | 48% | 11% | – | 24% | – |
| Rasmussen Reports | June 4–7, 2007 | 37% | 11% | – | 25% | – |
| Rasmussen Reports | May 29–31, 2007 | 34% | 15% | – | 26% | – |
| CBS/New York Times Poll | May 18–23, 2007 | 46% | 14% | – | 24% | – |
| Rasmussen Reports | Apr 30 – May 3, 2007 | 34% | 16% | – | 26% | – |
| Rasmussen Reports | Apr 23–26, 2007 | 30% | 17% | – | 32% | – |
| USA Today/Gallup | Apr 13–15, 2007 | 37% | 19% | – | 29% | – |
| Rasmussen Reports | Apr 9–12, 2007 | 32% | 16% | – | 30% | – |
| CBS News/New York Times Poll | Apr 9–12, 2007 | 39% | 21% | – | 24% | – |
| Time | Apr 5–9, 2007 | 33% | 25% | – | 26% | – |
| CBS News/New York Times Poll | Mar 26–27, 2007 | 36% | 18% | – | 28% | – |
| Time | Feb 23–26, 2007 | 42% | 22% | – | 30% | – |
| Rasmussen Reports | Nov 28 – Dec 4, 2006 | 34% | – | – | 17% | 1% |
| Cook Political Report/RT Strategies | Feb 23–26, 2006 | 44% | 14% | 16% | – | – |
| CNN/USA Today/Gallup | Feb 10, 2005 | 40% | 18% | 25% | – | – |
| CNN/USA Today/Gallup | Feb 4–6, 2005 | 40% | 17% | 25% | – | – |
| USA Today/Gallup | Nov 7–10, 2004 | 25% | 7% | 15% | – | – |

## Head-to-head polling

| Poll Source | Date | Hillary Clinton | John Edwards | Al Gore | John Kerry | Barack Obama | Mark Warner |
| USA Today/Gallup | July 12–15, 2007 | 54% | – | – | – | 42% | – |
| Newsweek | July 2–3, 2007 | 56% | – | – | – | 33% | – |
| USA Today/Gallup | June 11–14, 2007 | 53% | – | – | – | 42% | – |
| USA Today/Gallup | June 1–3, 2007 | 49% | – | – | – | 46% | – |
| USA Today/Gallup | May 10–13, 2007 | 54% | – | – | – | 40% | – |
| USA Today/Gallup | May 4–6, 2007 | 56% | – | – | – | 37% | – |
| Newsweek | May 2–3, 2007 | 51% | – | – | – | 39% | – |
| USA Today/Gallup | Apr. 13–15, 2007 | 53% | – | – | – | 41% | – |
| USA Today/Gallup | Apr. 2–5, 2007 | 61% | – | – | – | 33% | – |
| USA Today/Gallup | March 23–25, 2007 | 56% | – | – | – | 37% | – |
| NBC News/WSJ | March 2–4, 2007 | 47% | – | – | – | 39% | – |
| USA Today/Gallup | March 2–4, 2007 | 56% | – | – | – | 36% | – |
| Newsweek | Feb 28 – Mar 1, 2007 | 52% | – | – | – | 38% | – |
| FOX News/Opinion Dynamics | Feb 13–14, 2007 | 49% | – | – | – | 32% | – |
| USA Today/Gallup | Feb 9–11, 2007 | 62% | – | – | – | 33% | – |
| Newsweek | Jan 24–25, 2007 | 55% | – | – | – | 35% | – |
| Time | Jan 22–23, 2007 | 55% | – | – | – | 32% | – |
| CBS News Poll | Jan 18–21, 2007 | 45% | – | – | – | 28% | – |
| USA Today/Gallup | Jan 12–14, 2007 | 53% | – | – | – | 39% | – |
| Newsweek | Dec 5–6, 2006 | 50% | – | – | – | 32% | – |
| FOX News/Opinion Dynamics | Dec 5–6, 2006 | 52% | – | – | – | 30% | – |
| Newsweek | May 2–3, 2007 | 57% | 38% | – | – | – | – |
| Newsweek | May 2–3, 2007 | – | 41% | – | – | 49% | – |
| Newsweek | Feb 28 – Mar 1, 2007 | 63% | 32% | – | – | – | – |
| Newsweek | Feb 28 – Mar 1, 2007 | – | 42% | – | – | 49% | – |
| Newsweek | Jan 24–25, 2007 | 62% | 29% | – | – | – | – |
| Newsweek | Jan 24–25, 2007 | – | 39% | – | – | 46% | – |
| FOX News/Opinion Dynamics | Dec 5–6, 2006 | 53% | – | 36% | – | – | – |
| FOX News/Opinion Dynamics | Aug 29–30, 2006 | 53% | – | 34% | – | – | – |
| Diageo/Hotline | Apr 19–23, 2006 | 52% | 33% | – | – | – | – |
| Diageo/Hotline | Apr 19–23, 2006 | 57% | – | – | 30% | – | – |
| Diageo/Hotline | Apr 19–23, 2006 | 57% | – | 29% | – | – | – |
| Diageo/Hotline | Apr 19–23, 2006 | 66% | – | – | – | – | 15% |
| USA Today/Gallup | Nov 7–10, 2004 | 55% | 39% | – | – | – | – |
| Fabrizio, McLaughlin & Associates (R) | Nov 14–16, 2004 | 46% | 28% | – | – | – | – |

## Acceptability

| Poll Source | Date | Democrat | Acceptable | Unacceptable | Unsure/Other |
| Gallup | Jun 26–29, 2006 | John Edwards | 71% | 25% | 4% |
| Gallup | Jun 26–29, 2006 | Hillary Clinton | 69% | 29% | 1% |
| Gallup | Jun 26–29, 2006 | Al Gore | 68% | 31% | 1% |
| Gallup | Jun 26–29, 2006 | John Kerry | 59% | 40% | 1% |
| Gallup | Jun 26–29, 2006 | Joe Biden | 44% | 37% | 19% |
| Gallup | Dec 8–10, 2006 | Barack Obama | 42% | 11% | 47% |
| Gallup | Jun 26–29, 2006 | Wesley Clark | 42% | 49% | 10% |
| Gallup | Jun 26–29, 2006 | Howard Dean | 40% | 54% | 6% |
| Gallup | Jun 26–29, 2006 | Bill Richardson | 36% | 38% | 26% |
| Gallup | Jun 26–29, 2006 | Tom Daschle | 35% | 50% | 15% |
| Gallup | Jun 26–29, 2006 | Russ Feingold | 29% | 41% | 30% |
| Gallup | Jun 26–29, 2006 | Mark Warner | 29% | 42% | 29% |
| Gallup | Jun 26–29, 2006 | Dennis Kucinich | 21% | 51% | 27% |
| Gallup | Jun 26–29, 2006 | Tom Vilsack | 19% | 47% | 35% |