# Nationwide opinion polling for the 1968 United States presidential election

1968 U.S. presidential election :
Parties
Polling :
Democratic Party :
Primaries
Convention
protests
Nominee
VP candidate selection
Johnson withdrawal :
Republican Party :
Primaries
Convention
Nominee
VP candidate selection :
Third parties :
American Independent Party
nominee :
Related races :
Senate
House
Governors :
| ← 1964 | 1968 | 1972 → |
vte :
This article provides a list of scientific, nationwide public opinion polls that were conducted relating to the 1968 United States presidential election.

## Presidential election
### Richard Nixon vs Hubert Humphrey vs George Wallace

| Poll source | Date | Richard Nixon Republican | Hubert Humphrey Democratic | George Wallace American Ind. | Undecided/Other | Leading by (points) |
| Election Results | November 5, 1968 | 43.42% | 42.72% | 13.53% | 0.33% | 0.70 |
| Harris | November 4, 1968 | 40% | 43% | 13% | 4% | 3 |
| Gallup | November 4, 1968 | 42% | 40% | 14% | 4% | 2 |
| Harris | November 1, 1968 | 40% | 37% | 16% | 7% | 3 |
| Gallup | October 24, 1968 | 44% | 36% | 15% | 5% | 8 |
| Harris | October 18, 1968 | 40% | 35% | 18% | 7% | 5 |
| Gallup | October 9, 1968 | 44% | 29% | 20% | 7% | 8 |
| Gallup | September 29, 1968 | 43% | 28% | 21% | 8% | 15 |
| Harris | September 23, 1968 | 39% | 31% | 21% | 9% | 8 |
| Gallup | September 11, 1968 | 43% | 31% | 19% | 7% | 12 |
| Harris | August 27, 1968 | 40% | 34% | 17% | 9% | 6 |
| Gallup | August 21, 1968 | 45% | 29% | 18% | 8% | 16 |
| Harris | July 31, 1968 | 36% | 41% | 16% | 7% | 5 |
| Crossley | July 31, 1968 | 39% | 36% | 19% | 6% | 3 |
| Gallup | July 31, 1968 | 40% | 38% | 16% | 6% | 2 |
| Harris | July 20, 1968 | 35% | 37% | 17% | 11% | 2 |
| Gallup | July 11, 1968 | 35% | 40% | 16% | 9% | 5 |
| Harris | June 24, 1968 | - | - | - | - | 7 |
| Gallup | June 23, 1968 | 37% | 42% | 14% | 7% | 5 |
| Gallup | June 12, 1968 | 36% | 42% | 14% | 8% | 6 |
| Harris | May 23, 1968 | 37% | 41% | 14% | 8% | 4 |
| Gallup | May 12, 1968 | 39% | 36% | 14% | 11% | 3 |
| Harris | May 6, 1968 | 36% | 38% | 13% | 13% | 2 |
| Gallup | April 21, 1968 | 43% | 34% | 14% | 9% | 9 |
| Harris | April 6, 1968 | 34% | 35% | 12% | 19% | 1 |

## Hypothetical Polling
### Richard Nixon vs Eugene McCarthy vs George Wallace

| Poll source | Date | Richard Nixon Republican | Eugene McCarthy Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | August 27, 1968 | 41% | 35% | 16% | 8% | 6 |
| Gallup | August 21, 1968 | 42% | 37% | 16% | 5% | 5 |
| Harris | July 31, 1968 | 35% | 43% | 15% | 7% | 8 |
| Crossley | July 31, 1968 | 40% | 41% | 11% | 8% | 1 |
| Gallup | July 31, 1968 | 41% | 36% | 16% | 7% | 5 |
| Harris | July 20, 1968 | 34% | 42% | 16% | 8% | 8 |
| Gallup | July 11, 1968 | 36% | 39% | 18% | 7% | 3 |
| Gallup | June 23, 1968 | 39% | 41% | 14% | 6% | 2 |
| Harris | May 23, 1968 | 40% | 39% | 14% | 7% | 1 |
| Gallup | May 12, 1968 | 39% | 36% | 14% | 10% | 3 |
| Harris | May 6, 1968 | 37% | 40% | 13% | 10% | 3 |
| Gallup | April 21, 1968 | 41% | 38% | 10% | 11% | 3 |
| Harris | April 6, 1968 | 33% | 39% | 10% | 18% | 6 |

### Richard Nixon vs Lyndon Johnson vs George Wallace

| Poll source | Date | Richard Nixon Republican | Lyndon Johnson Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | August 28, 1968 | 42% | 36% | 16% | 6% | 6 |
| Harris | July 30, 1968 | 35% | 41% | 17% | 7% | 6 |
| Harris | March, 1968 | 39% | 41% | 13% | 7% | 3 |
| Gallup | March 26, 1968 | 41% | 39% | - | 14% | 3 |
| Harris | February 27, 1968 | 38% | 47% | 11% | 4% | 9 |
| Gallup | February 24, 1968 | 42% | 42% | - | 16% | Tied |
| Gallup | February 24, 1968 | 39% | 39% | 11% | 11% | Tied |
| Harris | February 20, 1968 | 43% | 48% | - | 9% | 5 |
| Gallup | January 20, 1968 | 39% | 51% | - | 10% | 12 |

### Richard Nixon vs Lyndon Johnson vs George Wallace vs Eugene McCarthy

| Poll source | Date | Richard Nixon Republican | Lyndon Johnson Democratic | George Wallace American Ind. | Eugene McCarthy Peace | Undecided | Leading by (points) |
| Gallup | January 6, 1968 | 30% | 39% | 11% | 12% | 8% | 9 |

### Richard Nixon vs Robert Kennedy vs George Wallace

| Poll source | Date | Richard Nixon Republican | Robert Kennedy Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | May 23, 1968 | 40% | 42% | 13% | 5% | 2 |
| Gallup | May 12, 1968 | 42% | 32% | 15% | 11% | 10 |
| Harris | May 6, 1968 | 40% | 38% | 14% | 8% | 2 |
| Gallup | April 21, 1968 | 41% | 38% | 10% | 11% | 3 |
| Harris | April 6, 1968 | 35% | 41% | 8% | 16% | 6 |

### Nelson Rockefeller vs Hubert Humphrey vs George Wallace

| Poll source | Date | Nelson Rockefeller Republican | Hubert Humphrey Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | July 31, 1968 | 40% | 34% | 20% | 6% | 6 |
| Crossley | July 31, 1968 | 37% | 31% | 22% | 10% | 6 |
| Gallup | July 31, 1968 | 36% | 36% | 21% | 7% | Tied |
| Harris | July 20, 1968 | 37% | 34% | 19% | 10% | 3 |
| Gallup | July 11, 1968 | 36% | 36% | 21% | 7% | Tied |
| Gallup | June 23, 1968 | 39% | 38% | 17% | 6% | 1 |
| Gallup | June 12, 1968 | 36% | 39% | 17% | 8% | 3 |
| Harris | May 23, 1968 | 37% | 40% | 17% | 6% | 3 |
| Gallup | May 12, 1968 | 40% | 33% | 16% | 11% | 3 |
| Harris | May 6, 1968 | 39% | 37% | 16% | 8% | 2 |

### Nelson Rockefeller vs Eugene McCarthy vs George Wallace

| Poll source | Date | Nelson Rockefeller Republican | Eugene McCarthy Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | July 31, 1968 | 40% | 34% | 20% | 6% | 6 |
| Crossley | July 31, 1968 | 38% | 30% | 22% | 10% | 8 |
| Gallup | July 31, 1968 | 36% | 35% | 21% | 7% | 1 |
| Harris | July 20, 1968 | 32% | 38% | 20% | 10% | 6 |
| Gallup | July 11, 1968 | 35% | 37% | 20% | 8% | 2 |
| Gallup | June 23, 1968 | 38% | 39% | 16% | 7% | 1 |
| Harris | May 23, 1968 | 38% | 36% | 19% | 8% | 2 |
| Gallup | May 12, 1968 | 40% | 31% | 17% | 12% | 9 |
| Harris | May 6, 1968 | 38% | 36% | 15% | 11% | 2 |

### Nelson Rockefeller vs Robert Kennedy vs George Wallace

| Poll source | Date | Nelson Rockefeller Republican | Robert Kennedy Democratic | George Wallace American Ind. | Undecided | Leading by (points) |
| Harris | May 23, 1968 | 41% | 36% | 17% | 6% | 5 |
| Gallup | May 12, 1968 | 42% | 28% | 18% | 12% | 14 |
| Harris | May 6, 1968 | 41% | 33% | 17% | 9% | 8 |