Senate
United States elections · 2004 · held
State Senate races in this election cycle, with separate candidate results and election-era ideology attribution.
State races and results map
Each race has its own denominator. Missing counts are blank. The interactive map uses modern state outlines as navigation references.
Alabama — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Richard Shelby | Republican | 1242038 | 67.60% | Elected |
| Wayne Sowell | Democratic | 595018 | 32.35% | — |
| Write Ins | Independent | 1848 | 0.10% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Richard Shelby (Republican) 68%
▌Wayne Sowell (Democratic) 32%
Sources & further reading
Alaska — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Lisa Murkowski | Republican | 149773 | 48.58% | Elected |
| Tony Knowles | Democratic | 140424 | 45.55% | — |
| Marc J. Millican | Independent | 8885 | 2.88% | — |
| Jerry Sanders | Independence | 3785 | 1.23% | — |
| Jim Sykes | Green | 3053 | 0.99% | — |
| Scott A. Kohlhaas | Libertarian | 1240 | 0.40% | — |
| Ted Gianoutsas | Independent | 732 | 0.24% | — |
Interim appointee elected. Source candidate / selection detail: ▌Y Lisa Murkowski (Republican) 48.6%
▌Tony Knowles (Democratic) 45.5%
▌Marc Millican (Independent) 2.9%
Others
▌Jerry Sanders (AKIP) 1.2%
▌Jim Sykes (Green) 1.0%
▌Scott Kohlhaas (Libertarian) 0.4%
Sources & further reading
Arizona — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| John McCain | Republican | 1505372 | 76.74% | Elected |
| Stuart Starky | Democratic | 404507 | 20.62% | — |
| Ernest Hancock | Libertarian | 51798 | 2.64% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y John McCain (Republican) 76%
▌Stuart Starky (Democratic) 21%
▌Ernest Hancock (Libertarian) 3%
Sources & further reading
Arkansas — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Blanche Lincoln | Democratic | 580973 | 55.90% | Elected |
| Jim Holt | Republican | 458036 | 44.07% | — |
| Write Ins | Independent | 340 | 0.00% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Blanche Lincoln (Democratic) 56%
▌Jim Holt (Republican) 44%
Sources & further reading
California — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Barbara Boxer | Democratic | 6955728 | 57.71% | Elected |
| Bill Jones | Republican | 4555922 | 37.80% | — |
| Marsha Feinland | Peace and Freedom | 243846 | 2.02% | — |
| James P. "Jim" Gray | Libertarian | 216522 | 1.80% | — |
| Don J. Grundmann | American Independent | 81224 | 0.67% | — |
| Dennis Richter (write-in) | No party | 43 | 0.00% | — |
| Howard Johnson (write-in) | No party | 8 | 0.00% | — |
| John Emery Jones (write-in) | No party | 2 | 0.00% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Barbara Boxer (Democratic) 57.7%
▌Bill Jones (Republican) 37.8%
Others
▌Marsha Feinland (Peace and Freedom) 2.0%
▌Jim Gray (Libertarian) 1.8%
▌Don J. Grundmann (Constitution) 0.7%
Sources & further reading
Colorado — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Ken Salazar | Democratic | 1081188 | 51.30% | Elected |
| Pete Coors | Republican | 980668 | 46.53% | — |
| Douglas Campbell | Constitution | 18783 | 0.89% | — |
| Richard Randall | Libertarian | 10160 | 0.48% | — |
| John R. Harris | Independent | 8442 | 0.40% | — |
| Victor Good | Reform | 6481 | 0.31% | — |
| Finn Gotaas | Independent | 1750 | 0.08% | — |
Incumbent retired. Democratic gain. Source candidate / selection detail: ▌Y Ken Salazar (Democratic) 51.3%
▌Pete Coors (Republican) 46.5%
Others
▌Doug Cambell (Constitution) 1%
▌Richard Randall (Libertarian) 0.5%
▌John Harris (Independent) 0.4%
▌Victor Good (Reform) 0.3%
Sources & further reading
Connecticut — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Chris Dodd | Democratic | 945347 | 66.35% | Elected |
| Jack Orchulli | Republican | 457749 | 32.13% | — |
| Timothy Knibbs | Concerned Citizens | 12442 | 0.87% | — |
| Leonard Rasch | Libertarian | 9188 | 0.64% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Chris Dodd (Democratic) 66.4%
▌Jack Orchulli (Republican) 32.1%
Others
▌Timothy Knibbs (Constitution) 0.9%
▌Lenny Rasch (Libertarian) 0.6%
Sources & further reading
Florida — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Mel Martínez | Republican | — | 49.50% | Elected |
| Betty Castor | Democratic | 3590201 | 48.32% | — |
| Dennis Bradley | Veterans | — | 2.20% | — |
Incumbent retired. Republican gain. Source candidate / selection detail: ▌Y Mel Martínez (Republican) 49.5%
▌Betty Castor (Democratic) 48.3%
▌Dennis Bradley (Veterans) 2.2%
Sources & further reading
Georgia — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Johnny Isakson | Republican | 1864202 | 57.88% | Elected |
| Denise Majette | Democratic | 1287695 | 39.98% | — |
| Allen Buckley | Libertarian | 69051 | 2.14% | — |
Incumbent retired. Republican gain. Source candidate / selection detail: ▌Y Johnny Isakson (Republican) 57.9%
▌Denise Majette (Democratic) 40%
▌Allen Buckley (Libertarian) 2.1%
Sources & further reading
Hawaii — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Daniel Inouye | Democratic | 313629 | 75.50% | Elected |
| Campbell Cavasso | Republican | 87172 | 21.00% | — |
| Jim Brewer | Independent | 9269 | 2.23% | — |
| Lloyd Jeffrey Mallan | Libertarian | 5277 | 1.30% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Daniel Inouye (Democratic) 75.5%
▌Campbell Cavasso (Republican) 21%
Others
▌James Brewer (Independent) 2.2%
▌Lloyd Mallan (Libertarian) 1.3%
Sources & further reading
Idaho — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Mike Crapo | Republican | 499796 | 99.18% | Elected |
| Scott McClure | Democratic write-in | — | 0.80% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Mike Crapo (Republican) 99.2%
▌Scott McClure (Democratic write-in) 0.8%
Sources & further reading
Illinois — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Barack Obama | Democratic | 3597456 | 69.97% | Elected |
| Alan Keyes | Republican | 1390690 | 27.05% | — |
| Al Franzen | Independent | 81164 | 1.60% | — |
| Jerry Kohn | Libertarian | 69253 | 1.35% | — |
Incumbent retired. Democratic gain. Source candidate / selection detail: ▌Y Barack Obama (Democratic) 70.0%
▌Alan Keyes (Republican) 27.0%
Others
▌Albert Franzen (Independent) 1.6%
▌Jerry Kohn (Libertarian) 1.3%
Sources & further reading
Indiana — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Evan Bayh | Democratic | 1496976 | 61.65% | Elected |
| Marvin Scott | Republican | 903913 | 37.23% | — |
| Albert Barger | Libertarian | 27344 | 1.13% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Evan Bayh (Democratic) 62%
▌Marvin Scott (Republican) 37%
▌Albert Barger (Libertarian) 1%
Sources & further reading
Iowa — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Chuck Grassley | Republican | 1038175 | 70.18% | Elected |
| Arthur A. Small | Democratic | 412365 | 27.88% | — |
| Christy Ann Welty | Libertarian | 15218 | 1.03% | — |
| Daryl A. Northrop | Green | 11121 | 0.75% | — |
| Edwin Fruit | Socialist Workers | 1874 | 0.13% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Chuck Grassley (Republican) 70.1%
▌Arthur Small (Democratic) 27.9%
Others
▌Christy Welty (Libertarian) 1.0%
▌Daryl Northrop (Green) 0.8%
▌Edwin Fruit (Socialist Workers) 0.1%
Sources & further reading
Kansas — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Sam Brownback | Republican | 780863 | 69.16% | Elected |
| Lee Jones | Democratic | 310337 | 27.49% | — |
| Steven A. Rosile | Libertarian | 21842 | 1.93% | — |
| George Cook | Reform | 15980 | 1.42% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Sam Brownback (Republican) 69%
▌Lee Jones (Democratic) 28%
▌Stephen A. Rosile (Libertarian) 2%
▌George Cook (Reform) 1%
Sources & further reading
Kentucky — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Jim Bunning | Republican | 873507 | 50.66% | Elected |
| Daniel Mongiardo | Democratic | 850855 | 49.34% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Jim Bunning (Republican) 51%
▌Daniel Mongiardo (Democratic) 49%
Sources & further reading
Louisiana — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| David Vitter | Republican | 943014 | 51.03% | Elected |
| Chris John | Democratic | 542150 | 29.34% | — |
| John Neely Kennedy | Democratic | 275821 | 14.92% | — |
| Arthur A. Morrell | Democratic | 47222 | 2.56% | — |
| Richard M. Fontanesi | Independent | 15097 | 0.82% | — |
| R. A. "Skip" Galan | Independent | 12463 | 0.67% | — |
| Sam Houston Melton, Jr. | Democratic | 12289 | 0.66% | — |
Incumbent retired. Republican gain. Source candidate / selection detail: ▌Y David Vitter (Republican) 51%
▌Chris John (Democratic) 29%
▌John Kennedy (Democratic) 15%
▌Arthur Morrell (Democratic) 3%
Others
▌Richard Fontanesi (Independent) 1%
▌R. A. Galan (Independent) 1%
▌Sam Melton (Democratic) 1%
Sources & further reading
Maryland — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Barbara Mikulski | Democratic | — | 64.80% | Elected |
| E. J. Pipkin | Republican | 783055 | 33.72% | — |
| Maria Allwine | Green | 24816 | 1.07% | — |
| Thomas Trump | Constitution | 9009 | 0.39% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Barbara Mikulski (Democratic) 64.8%
▌E. J. Pipkin (Republican) 33.7%
Others
▌Maria Allwine (Green) 1.1%
▌Thomas Trump (Constitution) 0.4%
Sources & further reading
Missouri — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Kit Bond | Republican | 1518089 | 56.09% | Elected |
| Nancy Farmer | Democratic | 1158261 | 42.80% | — |
| Kevin Tull | Libertarian | 19648 | 0.73% | — |
| Don Griffin | Constitution | 10404 | 0.38% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Kit Bond (Republican) 56%
▌Nancy Farmer (Democratic) 42.8%
Others
▌Kevin Tull (Libertarian) 0.7%
▌Don Griffin (Constitution) 0.4%
Sources & further reading
Nevada — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Harry Reid | Democratic | 494805 | 61.08% | Elected |
| Richard Ziser | Republican | 284640 | 35.14% | — |
| None of These Candidates | 12968 | 1.60% | — | |
| Thomas L. Hurst | Libertarian | 9559 | 1.18% | — |
| David K. Schumann | Independent American Party (Nevada) | 6001 | 0.74% | — |
| Gary Marinch | Natural Law | 2095 | 0.26% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Harry Reid (Democratic) 61.1%
▌Richard Ziser (Republican) 35.1%
Others
None of These Candidates 1.6%
▌Tomas Hurst (Libertarian) 1.2%
▌David Schumann (Constitution) 0.7%
▌Gary Marinch (Natural Law) 0.3%
Sources & further reading
New Hampshire — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Judd Gregg | Republican | 434847 | 66.18% | Elected |
| Doris Haddock | Democratic | — | 34.00% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Judd Gregg (Republican) 66%
▌Doris Haddock (Democratic) 34%
Sources & further reading
New York — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Chuck Schumer | Democratic | 4769824 | 71.20% | Elected |
| Howard Mills | Republican | 1625069 | 24.20% | — |
| Marilyn O'Grady | Conservative | 220960 | 3.30% | — |
| David McReynolds | Green | 36942 | 0.30% | — |
| Don Silberger | Libertarian | 19073 | 0.30% | — |
| Abe Hirschfeld | Builders Party | 16196 | 0.20% | — |
| Martin Koppel | Socialist Workers | 14811 | 0.20% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Chuck Schumer (Democratic) 71.2%
▌Howard Mills III (Republican) 24.2%
▌Marilyn O'Grady (Conservative) 3.0%
Others
▌David McReynolds (Green) 0.5%
▌Donald Silberger (Libertarian) 0.3%
▌Abraham Hirschfeld (Builders) 0.2%
▌Martin Koppel (Socialist Workers) 0.2%
Sources & further reading
North Carolina — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Richard Burr | Republican | 1791450 | 51.60% | Elected |
| Erskine Bowles | Democratic | 1632527 | 47.02% | — |
| Tom Bailey | Libertarian | 47743 | 1.38% | — |
| Walker F. Rucker (write-in) | Nonpartisan | 362 | 0.01% | — |
Incumbent retired to run for Vice President. Republican gain. Source candidate / selection detail: ▌Y Richard Burr (Republican) 52%
▌Erskine Bowles (Democratic) 47%
▌Tom Bailey (Libertarian) 1%
Sources & further reading
North Dakota — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Byron Dorgan | Democratic–NPL | 149936 | 68.28% | Elected |
| Mike Liffrig | Republican | 98553 | 31.72% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Byron Dorgan (Democratic-NPL) 68%
▌Mike Liffrig (Republican) 32%
Sources & further reading
Ohio — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| George Voinovich | Republican | 3464651 | 63.85% | Elected |
| Eric Fingerhut | Democratic | 1961249 | 36.14% | — |
| Helen Meyers | Independent | 296 | 0.01% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y George Voinovich (Republican) 63.9%
▌Eric Fingerhut (Democratic) 36.1%
Sources & further reading
Oklahoma — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Tom Coburn | Republican | 763433 | 52.77% | Elected |
| Brad Carson | Democratic | 596750 | 41.24% | — |
| Sheila Bilyeu | Independent | 86663 | 5.99% | — |
Incumbent retired. Republican hold. Source candidate / selection detail: ▌Y Tom Coburn (Republican) 52.8%
▌Brad Carson (Democratic) 41.2%
▌Sheila Bilyeu (Independent) 6.0%
Sources & further reading
Oregon — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Ron Wyden | Democratic | 1128728 | 63.39% | Elected |
| Al King | Republican | 565254 | 31.75% | — |
| Teresa Keane | Pacific Green | 43053 | 2.42% | — |
| Dan Fitzgerald | Libertarian | 29582 | 1.66% | — |
| David Brownlow | Constitution | 12397 | 0.70% | — |
| Misc. | Write-In | 1536 | 0.08% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Ron Wyden (Democratic) 63.4%
▌Al King (Republican) 31.8%
Others
▌Teresa Keane (Pacific Green) 2.4%
▌Dan Fitzgerald (Libertarian) 1.7%
▌David Brownlow (Constitution) 0.7%
Sources & further reading
Pennsylvania — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Arlen Specter | Republican | 2925080 | 52.62% | Elected |
| Joe Hoeffel | Democratic | 2334126 | 41.99% | — |
| Jim Clymer | Constitution | 220056 | 3.96% | — |
| Betsy Summers | Libertarian | 79263 | 1.43% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Arlen Specter (Republican) 52.6%
▌Joe Hoeffel (Democratic) 42.0%
▌Jim Clymer (Constitution) 4.0%
▌Betsy Summers (Libertarian) 1.4%
Sources & further reading
South Carolina — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Jim DeMint | Republican | 857167 | 53.67% | Elected |
| Inez Tenenbaum | Democratic | 704384 | 44.10% | — |
| Patrick Tyndall | Constitution | 13464 | 0.84% | — |
| Rebekah E. Sutherland | Libertarian | 10678 | 0.67% | — |
| Tee Ferguson | United Citizens Party | 5859 | 0.37% | — |
| Efia Nwangaza* | Green | 4383 | 0.27% | — |
| Write-Ins | No party | 1286 | 0.10% | — |
Incumbent retired. Republican gain. Source candidate / selection detail: ▌Y Jim DeMint (Republican) 53.7%
▌Inez Tenenbaum (Democratic) 44.1%
Others
▌Patrick Tyndall (Constitution) 0.8%
▌Rebekah Sutherland (Libertarian) 0.7%
▌Tee Ferguson (United Citizens) 0.4%
▌Efia Nwangaza (Green) 0.3%
Sources & further reading
South Dakota — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| John Thune | Republican | 197848 | 50.58% | Elected |
| Tom Daschle | Democratic | 193340 | 49.42% | — |
Incumbent lost re-election. Republican gain. Source candidate / selection detail: ▌Y John Thune (Republican) 50.5%
▌Tom Daschle (Democratic) 49.4%
Sources & further reading
Utah — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Bob Bennett | Republican | 626640 | 68.73% | Elected |
| Paul Van Dam | Democratic | 258955 | 28.40% | — |
| Gary R. Van Horn | Constitution | 17289 | 1.90% | — |
| Joe LaBonte | Personal Choice | 8824 | 0.97% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Bob Bennett (Republican) 68.7%
▌Paul Van Dam (Democratic) 28.4%
Others
▌Gary R. Van Horn (Constitution) 1.9%
▌Joe Labonte (Personal Choice) 1%
Sources & further reading
Vermont — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Patrick Leahy | Democratic | 216972 | 70.63% | Elected |
| Jack McMullen | Republican | 75398 | 24.54% | — |
| Cris Ericson | Independent | 6486 | 2.11% | — |
| Craig Hill | Green | 3999 | 1.30% | — |
| Keith Stern | Independent | 3300 | 1.07% | — |
| Ben Mitchell | Liberty Union | 879 | 0.29% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Patrick Leahy (Democratic) 70.6%
▌John A. McMullen (Republican) 24.5%
Others
▌Cris Ericson (Marijuana) 2.1%
▌Craig Hill (Green) 1.3%
▌Keith Stern (Independent) 1.1%
▌Ben Mitchell (Liberty Union) 0.3%
Sources & further reading
Washington — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Patty Murray | Democratic | 1549708 | 54.98% | Elected |
| George Nethercutt | Republican | 1204584 | 42.74% | — |
| J. Mills | Libertarian | 34055 | 1.21% | — |
| Mark Wilson | Green | 30304 | 1.08% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Patty Murray (Democratic) 55%
▌George Nethercutt (Republican) 42.7%
Others
▌J. Mills (Libertarian) 1.2%
▌Mark Wilson (Green) 1.1%
Sources & further reading
Wisconsin — Senate — General
Popular election. Popular votes in this state contest
| Candidate | Party | Votes | Share | Result |
|---|---|---|---|---|
| Russ Feingold | Democratic | 1632697 | 55.35% | Elected |
| Tim Michels | Republican | 1301183 | 44.11% | — |
| Arif Khan | Libertarian | 8367 | 0.28% | — |
| Eugene A. Hem | Independent | 6662 | 0.23% | — |
| Write-In Votes | Write-in | 834 | 0.03% | — |
Incumbent re-elected. Source candidate / selection detail: ▌Y Russ Feingold (Democratic) 55.4%
▌Tim Michels (Republican) 44.1%
Others
▌Arif Khan (Libertarian) 0.3%
▌Eugene A. Hem (Independent) 0.2%
Sources & further reading
Results: final · partial coverage · Elected candidates in regular races; continuing senators are not included
| Party / candidate | Votes | Vote share | Seats | Electoral votes |
|---|---|---|---|---|
| Richard Shelby · Alabama | — | — | 1 | — |
| Lisa Murkowski · Alaska | — | — | 1 | — |
| John McCain · Arizona | — | — | 1 | — |
| Blanche Lincoln · Arkansas | — | — | 1 | — |
| Barbara Boxer · California | — | — | 1 | — |
| Ken Salazar · Colorado | — | — | 1 | — |
| Chris Dodd · Connecticut | — | — | 1 | — |
| Mel Martínez · Florida | — | — | 1 | — |
| Johnny Isakson · Georgia | — | — | 1 | — |
| Daniel Inouye · Hawaii | — | — | 1 | — |
| Mike Crapo · Idaho | — | — | 1 | — |
| Barack Obama · Illinois | — | — | 1 | — |
| Evan Bayh · Indiana | — | — | 1 | — |
| Chuck Grassley · Iowa | — | — | 1 | — |
| Sam Brownback · Kansas | — | — | 1 | — |
| Jim Bunning · Kentucky | — | — | 1 | — |
| David Vitter · Louisiana | — | — | 1 | — |
| Barbara Mikulski · Maryland | — | — | 1 | — |
| Kit Bond · Missouri | — | — | 1 | — |
| Harry Reid · Nevada | — | — | 1 | — |
| Judd Gregg · New Hampshire | — | — | 1 | — |
| Chuck Schumer · New York | — | — | 1 | — |
| Richard Burr · North Carolina | — | — | 1 | — |
| Byron Dorgan · North Dakota | — | — | 1 | — |
| George Voinovich · Ohio | — | — | 1 | — |
| Tom Coburn · Oklahoma | — | — | 1 | — |
| Ron Wyden · Oregon | — | — | 1 | — |
| Arlen Specter · Pennsylvania | — | — | 1 | — |
| Jim DeMint · South Carolina | — | — | 1 | — |
| John Thune · South Dakota | — | — | 1 | — |
| Bob Bennett · Utah | — | — | 1 | — |
| Patrick Leahy · Vermont | — | — | 1 | — |
| Patty Murray · Washington | — | — | 1 | — |
| Russ Feingold · Wisconsin | — | — | 1 | — |
The seat diagram shows only regular seats contested in this cycle, not the full Senate. Special races remain available in the state selector. Early cycles span two years and use legislative selection; missing or non-comparable vote totals are left blank. Candidate ideology is used where sourced; otherwise the broad election-era party tradition is used. Unassessed candidates are not assigned an ideology.
Sources & further reading
U.S. Senate historical party divisions