Elections / 2008 · US Senate
The 2008 Senate map
33 Senate contests were decided in 2008: Democrats won 20, Republicans 13. Every contest below links to its page with the state's full Senate history.
2008 U.S. Senate elections
Dem. caucus 58 +751for control42 Republicans −7
8 seats flipped (AK, CO, MN, NC, NH, NM, OR, VA) — Democrats held control. Independents (Sanders, King) are counted in the caucus they organize with and shown in gold on the map.
NHMARINJDE
States with a seat up this cycle, filled by margin · cyan outlines a seat that flipped party · gold an independent · hover for the detail
Every contest
Statewide totals; candidate-level detail joins when the raw store is re-fetched with names.
| State | Won | Margin | Pres. 2008 | Democratic | Republican | Total |
|---|---|---|---|---|---|---|
| Alaska | D | R+21.5 | 151,767 | 147,814 | 316,646 | |
| Alabama | R | R+21.6 | 752,391 | 1,305,383 | 2,057,774 | |
| Arkansas | D | R+19.9 | 804,678 | 0 | 1,011,754 | |
| Colorado | D | D+9.0 | 1,230,994 | 990,755 | 2,331,486 | |
| Delaware | D | D+25.0 | 257,539 | 140,595 | 398,134 | |
| Georgia | R | R+5.2 | 909,923 | 1,228,033 | 2,137,956 | |
| Iowa | D | D+9.5 | 941,665 | 560,006 | 1,501,671 | |
| Idaho | R | R+25.4 | 219,903 | 371,744 | 644,777 | |
| Illinois | D | D+25.1 | 3,615,844 | 1,520,621 | 5,329,883 | |
| Kansas | R | R+15.0 | 441,399 | 727,121 | 1,210,690 | |
| Kentucky | R | R+16.2 | 847,005 | 953,816 | 1,800,821 | |
| Louisiana | D | R+18.6 | 988,298 | 867,177 | 1,896,574 | |
| Massachusetts | D | D+25.8 | 1,971,974 | 926,044 | 2,994,247 | |
| Maine | R | D+17.3 | 279,510 | 444,300 | 724,430 | |
| Michigan | D | D+16.5 | 3,038,386 | 1,641,070 | 4,848,620 | |
| Minnesota | D | D+10.2 | 1,212,629 | 1,212,317 | 2,885,281 | |
| Mississippi | R | R+13.2 | 480,915 | 766,111 | 1,247,026 | |
| Montana | D | R+2.4 | 348,289 | 129,369 | 477,658 | |
| North Carolina | D | D+0.3 | 2,249,311 | 1,887,510 | 4,270,251 | |
| Nebraska | R | R+14.9 | 317,456 | 455,854 | 792,511 | |
| New Hampshire | D | D+9.7 | 358,438 | 314,403 | 694,357 | |
| New Jersey | D | D+15.6 | 1,951,218 | 1,461,025 | 3,482,445 | |
| New Mexico | D | D+15.1 | 505,128 | 318,522 | 823,650 | |
| Oklahoma | R | R+31.3 | 527,736 | 763,375 | 1,346,819 | |
| Oregon | D | D+16.3 | 864,392 | 805,159 | 1,767,504 | |
| Rhode Island | D | D+28.0 | 320,644 | 116,174 | 436,818 | |
| South Carolina | R | R+9.0 | 790,621 | 1,076,534 | 1,867,155 | |
| South Dakota | D | R+8.4 | 237,889 | 142,784 | 380,673 | |
| Tennessee | R | R+15.0 | 767,236 | 1,579,477 | 2,424,585 | |
| Texas | R | R+11.8 | 3,389,365 | 4,337,469 | 7,912,075 | |
| Virginia | D | D+6.3 | 2,369,327 | 1,228,830 | 3,640,116 | |
| West Virginia | D | R+13.1 | 447,560 | 254,629 | 702,189 | |
| Wyoming | R | R+32.2 | 60,631 | 189,046 | 249,677 |
Source. MIT Election Data + Science Lab — 2008 US Senate returns, party-classified by literal ballot party · statewide certified totals. Real returns — nothing estimated.