White House
Democrats
Announced OutRepublicans
Announced Out- Sam Brownback
- John Cox
- Jim Gilmore
- Mike Huckabee
- Rudy Giulani
- Duncan Hunter
- Alan Keyes
- Mitt Romney
- Tom Tancredo
- Fred Thompson
- Tommy Thompson
Primary Calendar
Click on "Democrats" or "Republicans" to sort by date.
| Alabama | Feb. 5 | Feb. 5 |
| Alaska | Feb. 5 | Feb. 5 |
| Arizona | Feb. 5 | Feb. 5 |
| Arkansas | Feb. 5 | Feb. 5 |
| California | Feb. 5 | Feb. 5 |
| Colorado | Feb. 5 | Feb. 5 |
| Connecticut | Feb. 5 | Feb. 5 |
| Delaware | Feb. 5 | Feb. 5 |
| District of Columbia | Feb. 12 | Feb. 12 |
| Florida | Jan. 29 | Jan. 29 |
| Georgia | Feb. 5 | Feb. 5 |
| Hawaii | Feb. 19 | Jan. 25 * |
| Idaho | Feb. 5 | May 27 |
| Illinois | Feb. 5 | Feb. 5 |
| Indiana | May 6 | May 6 |
| Iowa | Jan. 3 | Jan. 3 |
| Kansas | Feb. 5 | Feb. 9 |
| Kentucky | May 20 | May 20 |
| Louisiana | Feb. 9 | Feb. 9 |
| Maine | Feb. 10 | Feb. 1-3 |
| Maryland | Feb. 12 | Feb. 12 |
| Massachusetts | Feb. 5 | Feb. 5 |
| Michigan | Jan. 15 | Jan. 15 |
| Minnesota | Feb. 5 | Feb. 5 |
| Mississippi | March 11 | March 11 |
| Missouri | Feb. 5 | Feb. 5 |
| Montana | June 3 | Feb. 5 |
| Nebraska | Feb. 9 | May 13 |
| Nevada | Jan. 19 | Jan. 19 |
| New Hampshire | Jan. 8 | Jan. 8 |
| New Jersey | Feb. 5 | Feb. 5 |
| New Mexico | Feb. 5 | June 3 |
| New York | Feb. 5 | Feb. 5 |
| North Carolina | May 6 | May 6 |
| North Dakota | Feb. 5 | Feb. 5 |
| Ohio | March 4 | March 4 |
| Oklahoma | Feb. 5 | Feb. 5 |
| Oregon | May 20 | May 20 |
| Pennsylvania | April 22 | April 22 |
| Rhode Island | March 4 | March 4 |
| South Carolina | Jan. 26 | Jan. 19 |
| South Dakota | June 3 | June 3 |
| Tennessee | Feb. 5 | Feb. 5 |
| Texas | March 4 | March 4 |
| Utah | Feb. 5 | Feb. 5 |
| Vermont | March 4 | March 4 |
| Virginia | Feb. 12 | Feb. 12 |
| Washington | Feb. 9 | Feb. 9 |
| West Virginia | May 13 | Feb. 5 ^ |
| Wisconsin | Feb. 19 | Feb. 19 |
| Wyoming | March 8 | Jan. 5 |
* Caucuses held between Jan. 25 and Feb. 7
^ Nominating convention
| Iowa | Jan. 3 | Jan. 3 |
| New Hampshire | Jan. 8 | Jan. 8 |
| Michigan | Jan. 15 | Jan. 15 |
| Nevada | Jan. 19 | Jan. 19 |
| South Carolina | Jan. 26 | Jan. 19 |
| Florida | Jan. 29 | Jan. 29 |
| Alabama | Feb. 5 | Feb. 5 |
| Alaska | Feb. 5 | Feb. 5 |
| Arizona | Feb. 5 | Feb. 5 | Arkansas | Feb. 5 | Feb. 5 |
| California | Feb. 5 | Feb. 5 |
| Colorado | Feb. 5 | Feb. 5 |
| Connecticut | Feb. 5 | Feb. 5 |
| Delaware | Feb. 5 | Feb. 5 |
| Georgia | Feb. 5 | Feb. 5 | Idaho | Feb. 5 | May 27 |
| Illinois | Feb. 5 | Feb. 5 |
| Kansas | Feb. 5 | Feb. 9 |
| Massachusetts | Feb. 5 | Feb. 5 |
| Minnesota | Feb. 5 | Feb. 5 |
| Missouri | Feb. 5 | Feb. 5 |
| New Jersey | Feb. 5 | Feb. 5 |
| New Mexico | Feb. 5 | June 3 |
| New York | Feb. 5 | Feb. 5 |
| North Dakota | Feb. 5 | Feb. 5 |
| Oklahoma | Feb. 5 | Feb. 5 |
| Tennessee | Feb. 5 | Feb. 5 |
| Utah | Feb. 5 | Feb. 5 |
| Louisiana | Feb. 9 | Feb. 9 |
| Nebraska | Feb. 9 | May 13 |
| Washington | Feb. 9 | Feb. 9 |
| Maine | Feb. 10 | Feb. 1 |
| District of Columbia | Feb. 12 | Feb. 12 |
| Maryland | Feb. 12 | Feb. 12 |
| Virginia | Feb. 12 | Feb. 12 |
| Hawaii | Feb. 19 | Jan. 25 * |
| Wisconsin | Feb. 19 | Feb. 19 |
| Ohio | March 4 | March 4 |
| Rhode Island | March 4 | March 4 |
| Texas | March 4 | March 4 |
| Vermont | March 4 | March 4 |
| Wyoming | March 8 | Jan. 5 |
| Mississippi | March 11 | March 11 |
| Pennsylvania | April 22 | April 22 |
| Indiana | May 6 | May 6 |
| North Carolina | May 6 | May 6 |
| West Virginia | May 13 | Feb. 5 ^ |
| Kentucky | May 20 | May 20 |
| Oregon | May 20 | May 20 |
| Montana | June 3 | Feb. 5 |
| South Dakota | June 3 | June 3 |
* Caucuses held between Jan. 25 and Feb. 7
^ Nominating convention
| Iowa | Jan. 3 | Jan. 3 |
| Wyoming | March 8 | Jan. 5 |
| New Hampshire | Jan. 8 | Jan. 8 |
| Michigan | Jan. 15 | Jan. 15 |
| Nevada | Jan. 19 | Jan. 19 |
| South Carolina | Jan. 26 | Jan. 19 |
| Hawaii | Feb. 19 | Jan. 25 * |
| Florida | Jan. 29 | Jan. 29 |
| Maine | Feb. 10 | Feb. 1-3 |
| Alabama | Feb. 5 | Feb. 5 |
| Alaska | Feb. 5 | Feb. 5 |
| Arizona | Feb. 5 | Feb. 5 |
| Arkansas | Feb. 5 | Feb. 5 |
| California | Feb. 5 | Feb. 5 |
| Colorado | Feb. 5 | Feb. 5 |
| Connecticut | Feb. 5 | Feb. 5 |
| Delaware | Feb. 5 | Feb. 5 |
| Georgia | Feb. 5 | Feb. 5 |
| Illinois | Feb. 5 | Feb. 5 |
| Massachusetts | Feb. 5 | Feb. 5 |
| Minnesota | Feb. 5 | Feb. 5 |
| Missouri | Feb. 5 | Feb. 5 |
| Montana | June 3 | Feb. 5 |
| New Jersey | Feb. 5 | Feb. 5 |
| New York | Feb. 5 | Feb. 5 |
| North Dakota | Feb. 5 | Feb. 5 |
| Oklahoma | Feb. 5 | Feb. 5 |
| Tennessee | Feb. 5 | Feb. 5 |
| Utah | Feb. 5 | Feb. 5 |
| West Virginia | May 13 | Feb. 5 ^ |
| Kansas | Feb. 5 | Feb. 9 |
| Louisiana | Feb. 9 | Feb. 9 |
| Washington | Feb. 9 | Feb. 9 |
| District of Columbia | Feb. 12 | Feb. 12 |
| Maryland | Feb. 12 | Feb. 12 |
| Virginia | Feb. 12 | Feb. 12 |
| Wisconsin | Feb. 19 | Feb. 19 |
| Ohio | March 4 | March 4 |
| Rhode Island | March 4 | March 4 | Texas | March 4 | March 4 |
| Vermont | March 4 | March 4 |
| Mississippi | March 11 | March 11 |
| Pennsylvania | April 22 | April 22 |
| Indiana | May 6 | May 6 |
| North Carolina | May 6 | May 6 |
| Nebraska | Feb. 9 | May 13 |
| Kentucky | May 20 | May 20 |
| Oregon | May 20 | May 20 |
| Idaho | Feb. 5 | May 27 |
| New Mexico | Feb. 5 | June 3 |
| South Dakota | June 3 | June 3 |
* Caucuses held between Jan. 25 and Feb. 7
^ Nominating convention
Hillary Rodham Clinton
John McCain
Barack Obama
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