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Election 2008 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2008 Senate election results by state and county

Barack Obama won the presidency in a financial crisis, and Democrats took 20 of the Senate seats up and gained eight, moving close to a 60-seat majority.

33 Senate races were held in 2008, plus 2 special elections. Democrats won 20 and Republicans 13.

The closest were Minnesota (level), Alaska (D+1.2) and Oregon (D+3.4). 8 seats changed party: Alaska to the Democrats, Colorado to the Democrats, Minnesota to the Democrats, New Hampshire to the Democrats, New Mexico to the Democrats, North Carolina to the Democrats, Oregon to the Democrats and Virginia to the Democrats.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

About the 2008 Senate elections

The collapse of Lehman Brothers in September 2008 turned the election into a referendum on the economy. Obama beat John McCain with 365 electoral votes. Democrats won 20 Senate races and Republicans 13, and Democrats took eight seats from Republicans: Alaska, Colorado, Minnesota, New Hampshire, New Mexico, North Carolina, Oregon and Virginia. In Alaska, Mark Begich beat Ted Stevens, who had been convicted on corruption charges a week before the election, a verdict later thrown out. Kay Hagan unseated Elizabeth Dole in North Carolina, Jeanne Shaheen beat John Sununu in New Hampshire, and Jeff Merkley beat Gordon Smith in Oregon. Mark Warner won Virginia, and Mark Udall and Tom Udall, cousins, won Colorado and New Mexico. Minnesota took eight months to settle. After a recount and a court fight, Al Franken was declared the winner over Norm Coleman by 312 votes and was seated in July 2009. With Arlen Specter's switch to the Democrats that spring, the party briefly held 60 seats, enough to pass the Affordable Care Act. Mitch McConnell held Kentucky by 5.9 points.

Every race

StateDemocratVotesRepublicanVotesOthersMargin
Alabama Vivian Davis Figures752,391 (36.5%) Jeff Sessions1,305,383 (63.4%) 2,417 R+26.8
Alaska flip Mark Begich151,767 (47.8%) Ted Stevens147,814 (46.5%) 18,142 D+1.2
Arkansas Mark Pryor804,678 (79.5%) none Rebekah Kennedy (Green) 207,076 (20.5%)
D+79.5
Colorado flip Mark Udall1,230,994 (52.8%) Bob Schaffer990,755 (42.5%) 109,872 D+10.3
Delaware Joseph R. Biden Jr.257,539 (64.7%) Christine O'Donnell140,595 (35.3%) D+29.4
Georgia Jim Martin909,923 (42.6%) Saxby Chambliss1,228,033 (57.4%) R+14.9
Georgia: Decided in the December runoff.
Idaho Larry LaRocco219,903 (34.1%) Jim Risch371,744 (57.7%) Rex Rammell (Independent) 34,510 (5.4%)
R+23.6
Illinois Richard J. Durbin3,615,844 (67.8%) Steve Sauerberg1,520,621 (28.5%) 193,419 D+39.3
Iowa Tom Harkin941,665 (62.7%) Christopher Reed560,006 (37.3%) 1,247 D+25.4
Kansas Jim Slattery441,399 (36.5%) Pat Roberts727,121 (60.1%) 42,170 R+23.6
Kentucky Bruce Lunsford847,005 (47.0%) Mitch McConnell953,816 (53.0%) R+5.9
Louisiana Mary L. Landrieu988,298 (52.1%) John Kennedy867,177 (45.7%) 41,099 D+6.4
Maine Thomas H. Allen279,510 (38.6%) Susan M. Collins444,300 (61.3%) 620 R+22.8
Massachusetts John Kerry1,971,974 (65.9%) Jeff Beatty926,044 (30.9%) 96,229 D+34.9
Michigan Carl Levin3,038,386 (62.7%) Jack Hoogendyk1,641,070 (33.8%) 169,164 D+28.8
Minnesota flip Al Franken1,212,629 (42.0%) Norm Coleman1,212,317 (42.0%) Dean Barkley (Independence) 437,505 (15.2%)
level
Mississippi Erik Fleming480,915 (38.6%) Thad Cochran766,111 (61.4%) R+22.9
Mississippi (special) Ronnie Musgrove560,064 (45.0%) Roger Wicker683,409 (55.0%) R+9.9
Montana Max Baucus348,289 (72.9%) Bob Kelleher129,369 (27.1%) D+45.8
Nebraska Scott Kleeb317,456 (40.1%) Mike Johanns455,854 (57.5%) 19,201 R+17.5
New Hampshire flip Jeanne Shaheen358,438 (51.6%) John E. Sununu314,403 (45.3%) 21,946 D+6.3
New Jersey Frank R. Lautenberg1,951,218 (56.0%) Dick Zimmer1,461,025 (42.0%) 70,202 D+14.1
New Mexico flip Tom Udall505,128 (61.3%) Steve Pearce318,522 (38.7%) D+22.7
North Carolina flip Kay Hagan2,249,311 (52.7%) Elizabeth Dole1,887,510 (44.2%) 135,149 D+8.5
Oklahoma Andrew Rice527,736 (39.2%) James M. Inhofe763,375 (56.7%) 55,708 R+17.5
Oregon flip Jeff Merkley864,392 (48.9%) Gordon Smith805,159 (45.6%) David Brownlow (Constitution) 92,565 (5.2%)
D+3.4
Rhode Island Jack Reed320,644 (73.1%) Robert G. Tingle116,174 (26.5%) 1,994 D+46.6
South Carolina Bob Conley790,621 (42.2%) Lindsey Graham1,076,534 (57.5%) 4,276 R+15.3
South Dakota Tim Johnson237,889 (62.5%) Joel Dykstra142,784 (37.5%) D+25.0
Tennessee Robert D. Tuke767,236 (31.6%) Lamar Alexander1,579,477 (65.1%) 77,872 R+33.5
Texas Rick Noriega3,389,365 (42.8%) John Cornyn4,337,469 (54.8%) 185,241 R+12.0
Virginia flip Mark Warner2,369,327 (65.0%) Jim Gilmore1,228,830 (33.7%) 45,137 D+31.3
West Virginia John D. Rockefeller IV447,560 (63.7%) Jay Wolfe254,629 (36.3%) 119 D+27.5
Wyoming Chris Rothfuss60,631 (24.3%) Michael B. Enzi189,046 (75.6%) 330 R+51.4
Wyoming (special) Nick Carter66,202 (26.5%) John Barrasso183,063 (73.3%) 354 R+46.8

Margin: the Democrat's share of all votes minus the Republican's. Margins are Democrat minus Republican, of all votes. Certified results, from the states' own archives, the MIT Election Data and Science Lab, Heideman (2026) and Algara & Amlani (2021). How these results were checked.

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