| Election Calendar | ||
| 10/04/2008 | Louisiana | Special Primary |
| House District 18 | ||
| Senate District 9 | ||
| US House (All) US Senate (Mary L. Landrieu (Rescheduled from 9/6/08)) | ||
| 10/14/2008 | Ohio | Special Primary |
| US House (Congressional District 11 (Tubbs Jones)) | ||
| 11/04/2008 | Alabama | General Election |
| US House (All) | ||
| US Senate (Jeff Sessions) | ||
| 11/04/2008 | Alaska | General Election |
| House (All) | ||
| Senate A, C, E, G, I, K, M, O, Q, T | ||
| US House (All) US Senate (Theodore F. Stevens) | ||
| 11/04/2008 | Arizona | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) | ||
| 11/04/2008 | Arkansas | General Election |
| House (All) | ||
| Senate 1, 2, 3, 4, 7, 8, 9, 12, 17, 20, 23, 24, 25, 26, 30, 31, 32, 33 | ||
| US House (All) US Senate (Pryor) | ||
| 11/04/2008 | California | General Election |
| Assembly (All) | ||
| Senate (Odd) | ||
| US House (All) | ||
| 11/04/2008 | Colorado | General Election |
| House (All) | ||
| Senate 4,8,10,12,14,16,17,18,19,21,23,25,26,27,28,29,31,33,35 | ||
| US House (All) US Senate (A. Wayne Allard) | ||
| 11/04/2008 | Connecticut | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) | ||
| 11/04/2008 | Delaware | General Election |
| House (All) | ||
| Senate Districts 2, 3, 4, 6, 10, 11, 16, 17, 21 Constitutional Officers: Governor, Lieutenant Governor, Insurance Commissioner | ||
| US House (All) US Senate (Joseph R. Biden, Jr.) | ||
| 11/04/2008 | Florida | General Election |
| House (All) | ||
| Senate Odd Seats Plus x | ||
| US House (All) | ||
| 11/04/2008 | Georgia | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) | ||
| 11/04/2008 | Georgia | Primary Election |
| US Senate (Saxby Chambliss) | ||
| 11/04/2008 | Hawaii | General Election |
| House (All) | ||
| Senate 1, 3, 5, 6, 7, 12, 16, 18, 22, 23 | ||
| US House (All) | ||
| 11/04/2008 | Idaho | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Craig) | ||
| 11/04/2008 | Illinois | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Durbin) | ||
| 11/04/2008 | Indiana | General Election |
| House (All) | ||
| Senate 2, 3, 5, 7, 8, 9, 10, 12, 13, 16, 18, 20, 24, 28, 30, 32, 33, 34, 35, 36, 37, 40, 42, 44, 50 | ||
| Constitutional Officers: Governor, Lieutenant Governor, Attorney General, Superintendent of Public Instruction | ||
| US House (All) | ||
| 11/04/2008 | Iowa | General Election |
| House (All) | ||
| Senate (Even) | ||
| US House (All) US Senate (Harkin) | ||
| 11/04/2008 | Kansas | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Pat Roberts) | ||
| 11/04/2008 | Kentucky | General Election |
| House (All) | ||
| Senate (Odd) | ||
| US House (All) US Senate (McConnell) | ||
| 11/04/2008 | Louisiana | 2nd Party Primary/General |
| US House (All) | ||
| US Senate (All) | ||
| 11/04/2008 | Louisiana | Special Election |
| House District 18 | ||
| Senate District 9 | ||
| 11/04/2008 | Maine | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Collins) | ||
| 11/04/2008 | Maryland | General Election |
| US House (All) | ||
| 11/04/2008 | Massachusetts | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (John F. Kerry) | ||
| 11/04/2008 | Michigan | General Election |
| House (All) | ||
| US House (All) US Senate (Carl Levin) | ||
| 11/04/2008 | Minnesota | General Election |
| House (All) | ||
| US House (All) US Senate (Norm Coleman) | ||
| 11/04/2008 | Minnesota | Special Election |
| Senate District 16, Betsy L. Wergin; District 63, Dan Larson | ||
| 11/04/2008 | Mississippi | General Election |
| US House (All) | ||
| US Senate (All) | ||
| 11/04/2008 | Mississippi | Special Election |
| US Senate (All) | ||
| 11/04/2008 | Missouri | General Election |
| House (All) | ||
| Senate (All) Constitutional Officers: Governor, Lieutenant Governor, Secretary of State, Treasurer, Attorney General | ||
| US House (All) | ||
| 11/04/2008 | Montana | General Election |
| House (All) | ||
| Senate 2, 3, 6, 7, 9, 10, 16, 18, 19, 21, 22, 24, 26, 27, 33, 34, 36, 37, 38, 41, 43, 45, 46, 47, 50 | ||
| Constitutional Officers: Governor, Lieutenant Governor, Secretary of State, Attorney General, Auditor, Superintendent of Public Instruction | ||
| US House (Rehberg) US Senate (Baucus) | ||
| 11/04/2008 | Nebraska | General Election |
| Legislature (Odd) | ||
| US Senate (Hagel) | ||
| 11/04/2008 | Nevada | General Election |
| Assembly (All) | ||
| Senate Central Nevada, Clark 1, 3, 4, 6, 11, Northern Nevada, Washoe 3 | ||
| US House (All) | ||
| 11/04/2008 | New Hampshire | General Election |
| House (All) | ||
| Senate (All) Constitutional Officers: Governor | ||
| US House (All) US Senate (John E. Sununu) | ||
| 11/04/2008 | New Jersey | General Election |
| US House (All) | ||
| US Senate (Lautenberg) | ||
| 11/04/2008 | New Mexico | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Domenici) | ||
| 11/04/2008 | New York | General Election |
| US House (All) | ||
| 11/04/2008 | North Carolina | General Election |
| House (All) | ||
| Senate (All) | ||
| Constitutional Officers: Governor, Lieutenant Governor, Secretary of State, Treasurer, Attorney General, Auditor, Insurance Commissioner, Labor Commissioner, Superintendent of Public Instruction | ||
| US House (All) US Senate (Dole) | ||
| 11/04/2008 | North Dakota | General Election |
| House (Even) | ||
| Senate (Even) Constitutional Officers: Governor, Lieutenant Governor, Treasurer, Auditor, Commissioner of Insurance, Supt of PublicInstruction, Public Service Commissioner 3 | ||
| US House (All) | ||
| 11/04/2008 | North Dakota | Primary Election |
| US Senate (All) | ||
| 11/04/2008 | Ohio | General Election |
| House (All) | ||
| Senate (Even) | ||
| US House (All) | ||
| 11/04/2008 | Ohio | Special Election |
| Constitutional Officers: Attorney General | ||
| 11/04/2008 | Oklahoma | General Election |
| House (All) | ||
| Senate (Odd) | ||
| US House (All) US Senate (James M. Inhofe) | ||
| 11/04/2008 | Oregon | General Election |
| House (All) | ||
| Senate 1, 2, 5, 9, 12, 14, 18, 21, 22, 23, 25, 27, 28, 29, 30 | ||
| Constitutional Officers: Secretary of State, Treasurer, Attorney General | ||
| US House (All) US Senate (Smith) | ||
| 11/04/2008 | Pennsylvania | General Election |
| House (All) | ||
| Senate (Odd) | ||
| Constitutional Officers: Treasurer, Attorney General, Auditor General | ||
| US House (All) | ||
| 11/04/2008 | Rhode Island | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (John F. Reed) | ||
| 11/04/2008 | South Carolina | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (All) US Senate (Graham) | ||
| 11/04/2008 | South Dakota | General Election |
| House (All) | ||
| Senate (All) | ||
| US House (Sandlin) US Senate (Johnson) | ||
| 11/04/2008 | Tennessee | General Election |
| House (All) | ||
| Senate (Even) | ||
| US House (All) US Senate (Lamar Alexander) | ||
| 11/04/2008 | Texas | General Election |
| House (All) | ||
| Senate 4, 6, 9, 10, 11, 16, 20, 21, 23, 24, 26, 27, 28, 30, 31 | ||
| US House (All) US Senate (Cornyn) | ||
| 11/04/2008 | Texas | Special Election |
| House Dist 81 (George E. "Buddy" West); Dist 55 | ||
| Senate District 17 (Kyle Janek) | ||
| 11/04/2008 | Utah | General Election |
| House (All) | ||
| Senate 1, 5, 6, 8, 10, 13, 14, 16, 19, 20, 23, 24, 25, 27, 29 | ||
| Constitutional Officers: Governor, Lieutenant Governor, Treasurer, Attorney General, Auditor | ||
| US House (All) | ||
| 11/04/2008 | Vermont | General Election |
| House (All) | ||
| Senate (All) Constitutional Officers: Governor, Lieutenant Governor, Secretary of State, Treasurer, Attorney General, Auditor of Accounts | ||
| US House (All) | ||
| 11/04/2008 | Virginia | General Election |
| US House (All) | ||
| US Senate (Warner) | ||
| 11/04/2008 | Washington | General Election |
| House (All) | ||
| Senate (All) Constitutional Officers: Governor, Lieutenant Governor, Secretary of State, Treasurer, Attorney General, Auditor, Commissioner of Public Lands, Insurance Commissioner, Superintendent of Public Schools | ||
| US House (All) | ||
| 11/04/2008 | West Virginia | General Election |
| House (All) | ||
| Senate (All) | ||
| Constitutional Officers: Governor, Secretary of State, Treasurer, Attorney General, Auditor, Commissioner of Agriculture | ||
| US House (All) US Senate (Rockefeller) | ||
| 11/04/2008 | Wisconsin | General Election |
| Assembly (All) | ||
| Senate (Even) | ||
| US House (All) | ||
| 11/04/2008 | Wyoming | General Election |
| House (Odd) | ||
| Senate (Even) | ||
| US House (All) US Senate (All) | ||
| 11/18/2008 | Ohio | Special Election |
| US House (Congressional District 11) | ||
| 11/25/2008 | Mississippi | Special Runoff |
| US Senate (All) | ||
| 12/06/2008 | Louisiana | Special Primary |
| Senate District 3 | ||
| US House (All) US Senate (All) | ||
| 01/17/2009 | Louisiana | Special Election |
| Senate District 3 | ||