Complete List of Presidential Polls Used
Below we have a list of all the presidential polls used on this site. Only nonpartisan polls are used; polls taken by pollsters working for one of the parties are intentionally omitted. The date given is when the poll ended. The poll length is also given. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by an asterisk.
The data are also available as plain text and in .csv format for use with Excel. In the latter, the first column is the day number of the midpoint (Jan. 1, 2008 = day 1.0) and the second is the poll length in days.
| State | Democrat | Republican | End | Len | Dem | GOP | I | Pollster |
| Alabama* | Barack Obama | John McCain | May 27 | 1 | 32% | 60% | Rasmussen | |
| Alabama* | Barack Obama | John McCain | Apr 24 | 9 | 36% | 55% | Capital Survey | |
| Alabama* | Barack Obama | John McCain | Apr 13 | 3 | 32% | 64% | SurveyUSA | |
| Alabama* | Barack Obama | John McCain | Apr 02 | 1 | 37% | 55% | Rasmussen | |
| Alabama* | Barack Obama | John McCain | Mar 27 | 4 | 30% | 57% | U. of South Alabama | |
| Alabama* | Barack Obama | John McCain | Mar 16 | 3 | 35% | 62% | SurveyUSA | |
| Alabama* | Barack Obama | John McCain | Feb 28 | 3 | 40% | 54% | SurveyUSA | |
| Alabama* | Barack Obama | John McCain | Jan 17 | 2 | 29% | 63% | SurveyUSA | |
| Alabama* | John Kerry | George Bush | Jan 01 | 1 | 37% | 63% | Election 2004 | |
| Alaska* | Barack Obama | John McCain | May 14 | 1 | 41% | 50% | Rasmussen | |
| Alaska* | Barack Obama | John McCain | May 14 | 3 | 42% | 49% | Research 2000 | |
| Alaska* | Barack Obama | John McCain | Apr 07 | 1 | 43% | 48% | Rasmussen | |
| Alaska* | Barack Obama | John McCain | Feb 28 | 3 | 43% | 48% | SurveyUSA | |
| Alaska* | John Kerry | George Bush | Jan 01 | 1 | 35% | 62% | Election 2004 | |
| Arizona* | Barack Obama | John McCain | May 20 | 9 | 39% | 50% | Rocky Mtn Poll | |
| Arizona* | Barack Obama | John McCain | Apr 27 | 4 | 38% | 47% | Arizona State U. | |
| Arizona* | Barack Obama | John McCain | Apr 15 | 1 | 37% | 57% | Rasmussen | |
| Arizona* | Barack Obama | John McCain | Apr 08 | 10 | 33% | 55% | Northern Arizona U. | |
| Arizona* | Barack Obama | John McCain | Feb 28 | 3 | 39% | 51% | SurveyUSA | |
| Arizona* | Barack Obama | John McCain | Feb 24 | 4 | 38% | 49% | Arizona State U. | |
| Arizona* | John Kerry | George Bush | Jan 01 | 1 | 45% | 55% | Election 2004 | |
| Arkansas* | Barack Obama | John McCain | May 12 | 1 | 33% | 57% | Rasmussen | |
| Arkansas* | Barack Obama | John McCain | Mar 18 | 1 | 30% | 59% | Rasmussen | |
| Arkansas* | Barack Obama | John McCain | Mar 11 | 6 | 27% | 43% | Opinion Res. | |
| Arkansas* | Barack Obama | John McCain | Feb 28 | 3 | 33% | 53% | SurveyUSA | |
| Arkansas* | John Kerry | George Bush | Jan 01 | 1 | 45% | 54% | Election 2004 | |
| California* | Barack Obama | John McCain | May 27 | 12 | 52% | 35% | Field Poll | |
| California* | Barack Obama | John McCain | May 21 | 2 | 47% | 40% | LA Times | |
| California* | Barack Obama | John McCain | May 20 | 1 | 52% | 38% | Rasmussen | |
| California* | Barack Obama | John McCain | May 18 | 3 | 49% | 41% | SurveyUSA | |
| California* | Barack Obama | John McCain | Apr 16 | 1 | 50% | 43% | Rasmussen | |
| California* | Barack Obama | John McCain | Apr 13 | 3 | 50% | 43% | SurveyUSA | |
| California* | Barack Obama | John McCain | Mar 16 | 3 | 54% | 40% | SurveyUSA | |
| California* | Barack Obama | John McCain | Mar 18 | 8 | 49% | 40% | Public Policy Institute of California | |
| California* | Barack Obama | John McCain | Mar 12 | 1 | 53% | 38% | Rasmussen | |
| California* | Barack Obama | John McCain | Feb 28 | 3 | 51% | 40% | SurveyUSA | |
| California* | Barack Obama | John McCain | Feb 17 | 3 | 61% | 34% | SurveyUSA | |
| California* | John Kerry | George Bush | Jan 01 | 1 | 55% | 44% | Election 2004 | |
| Colorado* | Barack Obama | John McCain | May 19 | 1 | 48% | 42% | Rasmussen | |
| Colorado* | Barack Obama | John McCain | Apr 16 | 1 | 46% | 43% | Rasmussen | |
| Colorado* | Barack Obama | John McCain | Mar 17 | 1 | 46% | 46% | Rasmussen | |
| Colorado* | Barack Obama | John McCain | Feb 28 | 3 | 50% | 41% | SurveyUSA | |
| Colorado* | John Kerry | George Bush | Jan 01 | 1 | 47% | 52% | Election 2004 | |
| Connecticut* | Barack Obama | John McCain | May 29 | 1 | 47% | 44% | Rasmussen | |
| Connecticut* | Barack Obama | John McCain | Mar 24 | 6 | 52% | 35% | Quinnipiac U. | |
| Connecticut* | Barack Obama | John McCain | Mar 11 | 1 | 50% | 38% | Rasmussen | |
| Connecticut* | Barack Obama | John McCain | Feb 28 | 3 | 55% | 34% | SurveyUSA | |
| Connecticut* | John Kerry | George Bush | Jan 01 | 1 | 54% | 44% | Election 2004 | |
| D.C.* | John Kerry | George Bush | Jan 01 | 1 | 90% | 9% | Election 2004 | |
| Delaware* | Barack Obama | John McCain | Feb 28 | 3 | 50% | 41% | SurveyUSA | |
| Delaware* | John Kerry | George Bush | Jan 01 | 1 | 53% | 46% | Election 2004 | |
| Florida* | Barack Obama | John McCain | May 19 | 1 | 40% | 50% | Rasmussen | |
| Florida* | Barack Obama | John McCain | Apr 29 | 7 | 43% | 44% | Quinnipiac U. | |
| Florida* | Barack Obama | John McCain | Apr 10 | 1 | 38% | 53% | Rasmussen | |
| Florida* | Barack Obama | John McCain | Mar 31 | 8 | 37% | 46% | Quinnipiac U. | |
| Florida* | Barack Obama | John McCain | Mar 12 | 1 | 43% | 47% | Rasmussen | |
| Florida* | Barack Obama | John McCain | Feb 28 | 3 | 45% | 47% | SurveyUSA | |
| Florida* | Barack Obama | John McCain | Feb 16 | 1 | 37% | 53% | Rasmussen | |
| Florida* | John Kerry | George Bush | Jan 01 | 1 | 47% | 52% | Election 2004 | |
| Georgia* | Barack Obama | John McCain | May 06 | 1 | 39% | 53% | Rasmussen | |
| Georgia* | Barack Obama | John McCain | Mar 20 | 1 | 40% | 53% | Rasmussen | |
| Georgia* | Barack Obama | John McCain | Feb 28 | 3 | 41% | 54% | SurveyUSA | |
| Georgia* | John Kerry | George Bush | Jan 01 | 1 | 41% | 58% | Election 2004 | |
| Hawaii* | Barack Obama | John McCain | Feb 28 | 3 | 61% | 31% | SurveyUSA | |
| Hawaii* | John Kerry | George Bush | Jan 01 | 1 | 54% | 45% | Election 2004 | |
| Idaho* | Barack Obama | John McCain | Feb 28 | 3 | 39% | 52% | SurveyUSA | |
| Idaho* | John Kerry | George Bush | Jan 01 | 1 | 30% | 69% | Election 2004 | |
| Illinois* | Barack Obama | John McCain | Feb 28 | 3 | 60% | 31% | SurveyUSA | |
| Illinois* | John Kerry | George Bush | Jan 01 | 1 | 55% | 45% | Election 2004 | |
| Indiana* | Barack Obama | John McCain | Apr 24 | 4 | 43% | 51% | Research 2000 | |
| Indiana* | Barack Obama | John McCain | Apr 23 | 4 | 49% | 41% | Selzer | |
| Indiana* | Barack Obama | John McCain | Apr 16 | 3 | 44% | 51% | IPFW U. | |
| Indiana* | Barack Obama | John McCain | Feb 28 | 3 | 41% | 50% | SurveyUSA | |
| Indiana* | Barack Obama | John McCain | Feb 04 | 2 | 40% | 50% | SurveyUSA | |
| Indiana* | John Kerry | George Bush | Jan 01 | 1 | 39% | 60% | Election 2004 | |
| Iowa* | Barack Obama | John McCain | May 22 | 2 | 47% | 38% | SurveyUSA | |
| Iowa* | Barack Obama | John McCain | May 13 | 1 | 44% | 42% | Rasmussen | |
| Iowa* | Barack Obama | John McCain | Apr 23 | 3 | 49% | 41% | Research 2000 | |
| Iowa* | Barack Obama | John McCain | Apr 13 | 3 | 49% | 42% | SurveyUSA | |
| Iowa* | Barack Obama | John McCain | Mar 31 | 1 | 46% | 42% | Rasmussen | |
| Iowa* | Barack Obama | John McCain | Mar 16 | 3 | 50% | 44% | SurveyUSA | |
| Iowa* | Barack Obama | John McCain | Feb 28 | 3 | 50% | 41% | SurveyUSA | |
| Iowa* | Barack Obama | John McCain | Feb 18 | 1 | 44% | 41% | Rasmussen | |
| Iowa* | Barack Obama | John McCain | Feb 17 | 3 | 51% | 41% | SurveyUSA | |
| Iowa* | John Kerry | George Bush | Jan 01 | 1 | 49% | 50% | Election 2004 | |
| Kansas* | Barack Obama | John McCain | May 18 | 3 | 39% | 49% | SurveyUSA | |
| Kansas* | Barack Obama | John McCain | May 13 | 1 | 34% | 55% | Rasmussen | |
| Kansas* | Barack Obama | John McCain | Apr 13 | 3 | 37% | 54% | SurveyUSA | |
| Kansas* | Barack Obama | John McCain | Mar 16 | 3 | 39% | 51% | SurveyUSA | |
| Kansas* | Barack Obama | John McCain | Feb 28 | 3 | 41% | 50% | SurveyUSA | |
| Kansas* | Barack Obama | John McCain | Feb 17 | 3 | 44% | 50% | SurveyUSA | |
| Kansas* | John Kerry | George Bush | Jan 01 | 1 | 37% | 62% | Election 2004 | |
| Kentucky* | Barack Obama | John McCain | May 26 | 1 | 32% | 57% | Rasmussen | |
| Kentucky* | Barack Obama | John McCain | May 09 | 3 | 33% | 58% | Research 2000 | |
| Kentucky* | Barack Obama | John McCain | Apr 13 | 3 | 29% | 63% | SurveyUSA | |
| Kentucky* | Barack Obama | John McCain | Mar 16 | 3 | 28% | 64% | SurveyUSA | |
| Kentucky* | Barack Obama | John McCain | Feb 28 | 3 | 33% | 54% | SurveyUSA | |
| Kentucky* | Barack Obama | John McCain | Feb 04 | 2 | 32% | 61% | SurveyUSA | |
| Kentucky* | John Kerry | George Bush | Jan 01 | 1 | 40% | 60% | Election 2004 | |
| Louisiana* | Barack Obama | John McCain | May 28 | 1 | 41% | 50% | Rasmussen | |
| Louisiana* | Barack Obama | John McCain | Apr 09 | 1 | 41% | 52% | Rasmussen | |
| Louisiana* | Barack Obama | John McCain | Apr 09 | 15 | 35% | 51% | Opinion Res. | |
| Louisiana* | Barack Obama | John McCain | Feb 28 | 3 | 39% | 54% | SurveyUSA | |
| Louisiana* | John Kerry | George Bush | Jan 01 | 1 | 42% | 57% | Election 2004 | |
| Maine* | Barack Obama | John McCain | May 14 | 1 | 51% | 38% | Rasmussen | |
| Maine* | Barack Obama | John McCain | Apr 01 | 1 | 49% | 39% | Rasmussen | |
| Maine* | Barack Obama | John McCain | Feb 28 | 3 | 53% | 39% | SurveyUSA | |
| Maine* | John Kerry | George Bush | Jan 01 | 1 | 53% | 45% | Election 2004 | |
| Maryland* | Barack Obama | John McCain | Feb 28 | 3 | 53% | 40% | SurveyUSA | |
| Maryland* | Barack Obama | John McCain | Mar 01 | 8 | 51% | 37% | Gonzales Res. | |
| Maryland* | John Kerry | George Bush | Jan 01 | 1 | 56% | 43% | Election 2004 | |
| Massachusetts* | Barack Obama | John McCain | May 29 | 1 | 51% | 38% | Rasmussen | |
| Massachusetts* | Barack Obama | John McCain | Apr 23 | 1 | 51% | 39% | Rasmussen | |
| Massachusetts* | Barack Obama | John McCain | Apr 13 | 3 | 48% | 46% | SurveyUSA | |
| Massachusetts* | Barack Obama | John McCain | Mar 18 | 1 | 49% | 42% | Rasmussen | |
| Massachusetts* | Barack Obama | John McCain | Mar 16 | 3 | 47% | 47% | SurveyUSA | |
| Massachusetts* | Barack Obama | John McCain | Feb 28 | 3 | 49% | 42% | SurveyUSA | |
| Massachusetts* | Barack Obama | John McCain | Feb 17 | 3 | 48% | 46% | SurveyUSA | |
| Massachusetts* | John Kerry | George Bush | Jan 01 | 1 | 62% | 37% | Election 2004 | |
| Michigan* | Barack Obama | John McCain | May 28 | 2 | 37% | 41% | SurveyUSA | |
| Michigan* | Barack Obama | John McCain | May 22 | 4 | 40% | 44% | EPIC-MRA | |
| Michigan* | Barack Obama | John McCain | May 08 | 1 | 44% | 45% | Rasmussen | |
| Michigan* | Barack Obama | John McCain | May 07 | 1 | 44% | 45% | Rasmussen | |
| Michigan* | Barack Obama | John McCain | Apr 08 | 6 | 43% | 41% | EPIC-MRA | |
| Michigan* | Barack Obama | John McCain | Mar 25 | 1 | 42% | 43% | Rasmussen | |
| Michigan* | Barack Obama | John McCain | Mar 10 | 1 | 41% | 44% | Rasmussen | |
| Michigan* | Barack Obama | John McCain | Feb 28 | 3 | 46% | 45% | SurveyUSA | |
| Michigan* | John Kerry | George Bush | Jan 01 | 1 | 51% | 48% | Election 2004 | |
| Minnesota* | Barack Obama | John McCain | May 22 | 1 | 53% | 38% | Rasmussen | |
| Minnesota* | Barack Obama | John McCain | May 18 | 3 | 47% | 42% | SurveyUSA | |
| Minnesota* | Barack Obama | John McCain | May 15 | 4 | 51% | 38% | Star Tribune | |
| Minnesota* | Barack Obama | John McCain | Apr 22 | 1 | 52% | 38% | Rasmussen | |
| Minnesota* | Barack Obama | John McCain | Apr 13 | 3 | 49% | 43% | SurveyUSA | |
| Minnesota* | Barack Obama | John McCain | Mar 19 | 1 | 47% | 43% | Rasmussen | |
| Minnesota* | Barack Obama | John McCain | Mar 16 | 3 | 46% | 47% | SurveyUSA | |
| Minnesota* | Barack Obama | John McCain | Feb 28 | 3 | 49% | 42% | SurveyUSA | |
| Minnesota* | Barack Obama | John McCain | Feb 16 | 1 | 53% | 38% | Rasmussen | |
| Minnesota* | Barack Obama | John McCain | Feb 17 | 3 | 55% | 40% | SurveyUSA | |
| Minnesota* | John Kerry | George Bush | Jan 01 | 1 | 51% | 48% | Election 2004 | |
| Mississippi* | Barack Obama | John McCain | May 27 | 1 | 44% | 50% | Rasmussen | |
| Mississippi* | Barack Obama | John McCain | May 21 | 3 | 39% | 54% | Research 2000 | |
| Mississippi* | Barack Obama | John McCain | Feb 28 | 3 | 41% | 54% | SurveyUSA | |
| Mississippi* | John Kerry | George Bush | Jan 01 | 1 | 40% | 60% | Election 2004 | |
| Missouri* | Barack Obama | John McCain | May 18 | 3 | 45% | 48% | SurveyUSA | |
| Missouri* | Barack Obama | John McCain | May 06 | 1 | 41% | 47% | Rasmussen | |
| Missouri* | Barack Obama | John McCain | Apr 13 | 3 | 42% | 50% | SurveyUSA | |
| Missouri* | Barack Obama | John McCain | Mar 24 | 1 | 38% | 53% | Rasmussen | |
| Missouri* | Barack Obama | John McCain | Mar 16 | 3 | 39% | 53% | SurveyUSA | |
| Missouri* | Barack Obama | John McCain | Feb 28 | 3 | 42% | 48% | SurveyUSA | |
| Missouri* | Barack Obama | John McCain | Feb 17 | 3 | 49% | 43% | SurveyUSA | |
| Missouri* | Barack Obama | John McCain | Feb 12 | 1 | 40% | 42% | Rasmussen | |
| Missouri* | John Kerry | George Bush | Jan 01 | 1 | 46% | 53% | Election 2004 | |
| Montana* | Barack Obama | John McCain | May 21 | 3 | 39% | 47% | Mason-Dixon | |
| Montana* | Barack Obama | John McCain | Apr 06 | 1 | 43% | 48% | Rasmussen | |
| Montana* | Barack Obama | John McCain | Feb 28 | 3 | 39% | 47% | SurveyUSA | |
| Montana* | John Kerry | George Bush | Jan 01 | 1 | 39% | 59% | Election 2004 | |
| Nebraska* | Barack Obama | John McCain | May 21 | 3 | 29% | 57% | Research 2000 | |
| Nebraska* | Barack Obama | John McCain | May 18 | 3 | 40% | 49% | SurveyUSA | |
| Nebraska* | Barack Obama | John McCain | May 15 | 1 | 39% | 50% | Rasmussen | |
| Nebraska* | Barack Obama | John McCain | Feb 28 | 3 | 42% | 45% | SurveyUSA | |
| Nebraska* | John Kerry | George Bush | Jan 01 | 1 | 32% | 67% | Election 2004 | |
| Nevada* | Barack Obama | John McCain | May 20 | 1 | 40% | 46% | Rasmussen | |
| Nevada* | Barack Obama | John McCain | Apr 21 | 1 | 43% | 48% | Rasmussen | |
| Nevada* | Barack Obama | John McCain | Mar 19 | 1 | 45% | 41% | Rasmussen | |
| Nevada* | Barack Obama | John McCain | Feb 28 | 3 | 46% | 41% | SurveyUSA | |
| Nevada* | Barack Obama | John McCain | Feb 12 | 1 | 50% | 38% | Rasmussen | |
| Nevada* | John Kerry | George Bush | Jan 01 | 1 | 48% | 51% | Election 2004 | |
| New Hampshire* | Barack Obama | John McCain | May 21 | 1 | 48% | 43% | Rasmussen | |
| New Hampshire* | Barack Obama | John McCain | Apr 30 | 1 | 41% | 51% | Rasmussen | |
| New Hampshire* | Barack Obama | John McCain | Apr 30 | 6 | 43% | 49% | U. of New Hampshire | |
| New Hampshire* | Barack Obama | John McCain | Mar 16 | 1 | 43% | 46% | Rasmussen | |
| New Hampshire* | Barack Obama | John McCain | Feb 28 | 3 | 46% | 44% | SurveyUSA | |
| New Hampshire* | John Kerry | George Bush | Jan 01 | 1 | 50% | 49% | Election 2004 | |
| New Jersey* | Barack Obama | John McCain | Apr 28 | 5 | 56% | 32% | Monmouth U. | |
| New Jersey* | Barack Obama | John McCain | Mar 27 | 1 | 45% | 46% | Rasmussen | |
| New Jersey* | Barack Obama | John McCain | Mar 30 | 7 | 47% | 42% | Fairleigh Dickinson U. | |
| New Jersey* | Barack Obama | John McCain | Feb 27 | 1 | 43% | 45% | Rasmussen | |
| New Jersey* | Barack Obama | John McCain | Feb 28 | 3 | 43% | 43% | SurveyUSA | |
| New Jersey* | John Kerry | George Bush | Jan 01 | 1 | 53% | 47% | Election 2004 | |
| New Mexico* | Barack Obama | John McCain | May 18 | 3 | 44% | 44% | SurveyUSA | |
| New Mexico* | Barack Obama | John McCain | May 14 | 1 | 50% | 41% | Rasmussen | |
| New Mexico* | Barack Obama | John McCain | Apr 13 | 3 | 44% | 50% | SurveyUSA | |
| New Mexico* | Barack Obama | John McCain | Apr 08 | 1 | 45% | 42% | Rasmussen | |
| New Mexico* | Barack Obama | John McCain | Mar 16 | 3 | 51% | 45% | SurveyUSA | |
| New Mexico* | Barack Obama | John McCain | Feb 28 | 3 | 50% | 43% | SurveyUSA | |
| New Mexico* | Barack Obama | John McCain | Feb 18 | 2 | 44% | 44% | Rasmussen | |
| New Mexico* | Barack Obama | John McCain | Feb 17 | 3 | 55% | 40% | SurveyUSA | |
| New Mexico* | John Kerry | George Bush | Jan 01 | 1 | 49% | 50% | Election 2004 | |
| New York* | Barack Obama | John McCain | May 28 | 1 | 52% | 33% | Rasmussen | |
| New York* | Barack Obama | John McCain | May 14 | 3 | 49% | 38% | Siena Coll. | |
| New York* | Barack Obama | John McCain | May 01 | 1 | 52% | 35% | Rasmussen | |
| New York* | Barack Obama | John McCain | Apr 15 | 2 | 47% | 39% | Quinnipiac U. | |
| New York* | Barack Obama | John McCain | Apr 16 | 4 | 45% | 40% | Siena Coll. | |
| New York* | Barack Obama | John McCain | Apr 13 | 3 | 52% | 43% | SurveyUSA | |
| New York* | Barack Obama | John McCain | Apr 08 | 6 | 46% | 48% | Marist Coll. | |
| New York* | Barack Obama | John McCain | Mar 18 | 3 | 49% | 38% | Quinnipiac U. | |
| New York* | Barack Obama | John McCain | Mar 16 | 3 | 52% | 44% | SurveyUSA | |
| New York* | Barack Obama | John McCain | Mar 11 | 1 | 51% | 38% | Rasmussen | |
| New York* | Barack Obama | John McCain | Feb 28 | 3 | 52% | 38% | SurveyUSA | |
| New York* | Barack Obama | John McCain | Feb 17 | 3 | 57% | 36% | SurveyUSA | |
| New York* | John Kerry | George Bush | Jan 01 | 1 | 58% | 41% | Election 2004 | |
| North Carolina* | Barack Obama | John McCain | May 19 | 3 | 43% | 51% | SurveyUSA | |
| North Carolina* | Barack Obama | John McCain | May 08 | 1 | 45% | 48% | Rasmussen | |
| North Carolina* | Barack Obama | John McCain | Apr 30 | 3 | 41% | 50% | Research 2000 | |
| North Carolina* | Barack Obama | John McCain | Apr 10 | 1 | 47% | 47% | Rasmussen | |
| North Carolina* | Barack Obama | John McCain | Apr 10 | 2 | 39% | 48% | Tel Opinion Research | |
| North Carolina* | Barack Obama | John McCain | Mar 20 | 1 | 42% | 51% | Rasmussen | |
| North Carolina* | Barack Obama | John McCain | Feb 28 | 3 | 45% | 47% | SurveyUSA | |
| North Carolina* | John Kerry | George Bush | Jan 01 | 1 | 44% | 56% | Election 2004 | |
| North Dakota* | Barack Obama | John McCain | Apr 03 | 11 | 38% | 44% | Dakota Wesleyan U. | |
| North Dakota* | Barack Obama | John McCain | Feb 28 | 3 | 46% | 42% | SurveyUSA | |
| North Dakota* | John Kerry | George Bush | Jan 01 | 1 | 36% | 63% | Election 2004 | |
| Ohio* | Barack Obama | John McCain | May 18 | 3 | 48% | 39% | SurveyUSA | |
| Ohio* | Barack Obama | John McCain | May 20 | 8 | 40% | 44% | Quinnipiac | |
| Ohio* | Barack Obama | John McCain | May 14 | 1 | 44% | 45% | Rasmussen | |
| Ohio* | Barack Obama | John McCain | Apr 29 | 7 | 42% | 43% | Quinnipiac U. | |
| Ohio* | Barack Obama | John McCain | Apr 13 | 3 | 45% | 47% | SurveyUSA | |
| Ohio* | Barack Obama | John McCain | Apr 08 | 1 | 40% | 47% | Rasmussen | |
| Ohio* | Barack Obama | John McCain | Mar 31 | 8 | 43% | 42% | Quinnipiac U. | |
| Ohio* | Barack Obama | John McCain | Mar 16 | 3 | 43% | 50% | SurveyUSA | |
| Ohio* | Barack Obama | John McCain | Mar 13 | 1 | 40% | 46% | Rasmussen | |
| Ohio* | Barack Obama | John McCain | Feb 28 | 3 | 50% | 40% | SurveyUSA | |
| Ohio* | Barack Obama | John McCain | Feb 17 | 3 | 47% | 44% | SurveyUSA | |
| Ohio* | John Kerry | George Bush | Jan 01 | 1 | 49% | 51% | Election 2004 | |
| Oklahoma* | Barack Obama | John McCain | Feb 28 | 3 | 34% | 57% | SurveyUSA | |
| Oklahoma* | John Kerry | George Bush | Jan 01 | 1 | 34% | 66% | Election 2004 | |
| Oregon* | Barack Obama | John McCain | May 18 | 3 | 49% | 39% | SurveyUSA | |
| Oregon* | Barack Obama | John McCain | May 07 | 1 | 52% | 38% | Rasmussen | |
| Oregon* | Barack Obama | John McCain | Apr 13 | 3 | 51% | 42% | SurveyUSA | |
| Oregon* | Barack Obama | John McCain | Mar 26 | 1 | 48% | 42% | Rasmussen | |
| Oregon* | Barack Obama | John McCain | Mar 16 | 3 | 50% | 41% | SurveyUSA | |
| Oregon* | Barack Obama | John McCain | Feb 28 | 3 | 49% | 41% | SurveyUSA | |
| Oregon* | Barack Obama | John McCain | Feb 17 | 3 | 48% | 47% | SurveyUSA | |
| Oregon* | Barack Obama | John McCain | Feb 13 | 1 | 49% | 40% | Rasmussen | |
| Oregon* | John Kerry | George Bush | Jan 01 | 1 | 52% | 48% | Election 2004 | |
| Pennsylvania* | Barack Obama | John McCain | May 21 | 1 | 45% | 43% | Rasmussen | |
| Pennsylvania* | Barack Obama | John McCain | May 18 | 3 | 48% | 40% | SurveyUSA | |
| Pennsylvania* | Barack Obama | John McCain | May 06 | 6 | 46% | 39% | Susquehanna Polling | |
| Pennsylvania* | Barack Obama | John McCain | Apr 29 | 7 | 47% | 38% | Quinnipiac U. | |
| Pennsylvania* | Barack Obama | John McCain | Apr 24 | 1 | 43% | 44% | Rasmussen | |
| Pennsylvania* | Barack Obama | John McCain | Apr 09 | 1 | 47% | 39% | Rasmussen | |
| Pennsylvania* | Barack Obama | John McCain | Mar 31 | 8 | 43% | 39% | Quinnipiac U. | |
| Pennsylvania* | Barack Obama | John McCain | Mar 10 | 1 | 43% | 44% | Rasmussen | |
| Pennsylvania* | Barack Obama | John McCain | Mar 10 | 6 | 41% | 45% | Susquehanna Polling | |
| Pennsylvania* | Barack Obama | John McCain | Feb 28 | 3 | 42% | 47% | SurveyUSA | |
| Pennsylvania* | John Kerry | George Bush | Jan 01 | 1 | 51% | 49% | Election 2004 | |
| Rhode Island* | Barack Obama | John McCain | Feb 28 | 3 | 53% | 38% | SurveyUSA | |
| Rhode Island* | John Kerry | George Bush | Jan 01 | 1 | 60% | 39% | Election 2004 | |
| South Carolina* | Barack Obama | John McCain | Feb 28 | 3 | 45% | 48% | SurveyUSA | |
| South Carolina* | John Kerry | George Bush | Jan 01 | 1 | 41% | 58% | Election 2004 | |
| South Dakota* | Barack Obama | John McCain | Apr 03 | 11 | 34% | 51% | Dakota Wesleyan U. | |
| South Dakota* | Barack Obama | John McCain | Mar 04 | 1 | 38% | 48% | Rasmussen | |
| South Dakota* | Barack Obama | John McCain | Feb 28 | 3 | 43% | 47% | SurveyUSA | |
| South Dakota* | John Kerry | George Bush | Jan 01 | 1 | 38% | 60% | Election 2004 | |
| Tennessee* | Barack Obama | John McCain | Apr 03 | 1 | 31% | 58% | Rasmussen | |
| Tennessee* | Barack Obama | John McCain | Feb 28 | 3 | 38% | 54% | SurveyUSA | |
| Tennessee* | John Kerry | George Bush | Jan 01 | 1 | 43% | 57% | Election 2004 | |
| Texas* | Barack Obama | John McCain | May 07 | 3 | 39% | 52% | Research 2000 | |
| Texas* | Barack Obama | John McCain | May 01 | 1 | 43% | 48% | Rasmussen | |
| Texas* | Barack Obama | John McCain | Feb 28 | 3 | 46% | 47% | SurveyUSA | |
| Texas* | John Kerry | George Bush | Jan 01 | 1 | 38% | 61% | Election 2004 | |
| Utah* | Barack Obama | John McCain | May 19 | 7 | 27% | 62% | Dan Jones | |
| Utah* | Barack Obama | John McCain | Feb 28 | 3 | 39% | 50% | SurveyUSA | |
| Utah* | John Kerry | George Bush | Jan 01 | 1 | 26% | 71% | Election 2004 | |
| Vermont* | Barack Obama | John McCain | Feb 28 | 3 | 63% | 29% | SurveyUSA | |
| Vermont* | John Kerry | George Bush | Jan 01 | 1 | 59% | 39% | Election 2004 | |
| Virginia* | Barack Obama | John McCain | May 18 | 3 | 49% | 42% | SurveyUSA | |
| Virginia* | Barack Obama | John McCain | May 18 | 7 | 36% | 44% | Virg. Commonwealth U. | |
| Virginia* | Barack Obama | John McCain | May 08 | 1 | 44% | 47% | Rasmussen | |
| Virginia* | Barack Obama | John McCain | Apr 13 | 3 | 44% | 52% | SurveyUSA | |
| Virginia* | Barack Obama | John McCain | Mar 27 | 1 | 41% | 52% | Rasmussen | |
| Virginia* | Barack Obama | John McCain | Mar 16 | 3 | 48% | 47% | SurveyUSA | |
| Virginia* | Barack Obama | John McCain | Feb 28 | 3 | 47% | 47% | SurveyUSA | |
| Virginia* | Barack Obama | John McCain | Feb 19 | 1 | 44% | 49% | Rasmussen | |
| Virginia* | Barack Obama | John McCain | Feb 17 | 3 | 51% | 45% | SurveyUSA | |
| Virginia* | John Kerry | George Bush | Jan 01 | 1 | 45% | 54% | Election 2004 | |
| Washington* | Barack Obama | John McCain | May 25 | 5 | 44% | 38% | Elway Poll | |
| Washington* | Barack Obama | John McCain | May 18 | 3 | 52% | 36% | SurveyUSA | |
| Washington* | Barack Obama | John McCain | May 12 | 1 | 54% | 42% | SurveyUSA | |
| Washington* | Barack Obama | John McCain | Apr 16 | 3 | 53% | 40% | SurveyUSA | |
| Washington* | Barack Obama | John McCain | Mar 27 | 1 | 48% | 43% | Rasmussen | |
| Washington* | Barack Obama | John McCain | Mar 20 | 3 | 45% | 39% | Elway Poll | |
| Washington* | Barack Obama | John McCain | Mar 16 | 3 | 52% | 41% | SurveyUSA | |
| Washington* | Barack Obama | John McCain | Feb 28 | 1 | 44% | 45% | Rasmussen | |
| Washington* | Barack Obama | John McCain | Feb 28 | 3 | 52% | 38% | SurveyUSA | |
| Washington* | Barack Obama | John McCain | Feb 04 | 2 | 55% | 38% | SurveyUSA | |
| Washington* | John Kerry | George Bush | Jan 01 | 1 | 53% | 46% | Election 2004 | |
| West Virginia* | Barack Obama | John McCain | Feb 28 | 3 | 35% | 53% | SurveyUSA | |
| West Virginia* | John Kerry | George Bush | Jan 01 | 1 | 43% | 56% | Election 2004 | |
| Wisconsin* | Barack Obama | John McCain | May 18 | 3 | 48% | 42% | SurveyUSA | |
| Wisconsin* | Barack Obama | John McCain | May 05 | 1 | 43% | 47% | Rasmussen | |
| Wisconsin* | Barack Obama | John McCain | Apr 24 | 10 | 47% | 43% | U. of Wisconsin | |
| Wisconsin* | Barack Obama | John McCain | Apr 13 | 3 | 49% | 44% | SurveyUSA | |
| Wisconsin* | Barack Obama | John McCain | Apr 05 | 12 | 46% | 42% | St. Norbert Coll. | |
| Wisconsin* | Barack Obama | John McCain | Mar 26 | 1 | 46% | 48% | Rasmussen | |
| Wisconsin* | Barack Obama | John McCain | Mar 16 | 3 | 48% | 44% | SurveyUSA | |
| Wisconsin* | Barack Obama | John McCain | Feb 28 | 3 | 51% | 40% | SurveyUSA | |
| Wisconsin* | Barack Obama | John McCain | Feb 21 | 1 | 44% | 43% | Rasmussen | |
| Wisconsin* | Barack Obama | John McCain | Feb 17 | 3 | 52% | 42% | SurveyUSA | |
| Wisconsin* | John Kerry | George Bush | Jan 01 | 1 | 50% | 49% | Election 2004 | |
| Wyoming* | Barack Obama | John McCain | May 21 | 2 | 40% | 53% | Research 2000 | |
| Wyoming* | Barack Obama | John McCain | Feb 28 | 3 | 35% | 54% | SurveyUSA | |
| Wyoming* | John Kerry | George Bush | Jan 01 | 1 | 29% | 69% | Election 2004 | |
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