110th Congress / Senate / Member list
| Member | State | Party | Notes |
|---|---|---|---|
| Daniel Akaka | Hawaii | Democratic | |
| Lamar Alexander | Tennessee | Republican | |
| Wayne Allard | Colorado | Republican | |
| John Barrasso | Wyoming | Republican | Entered office on June 25, 2007. |
| Max Baucus | Montana | Democratic | |
| Evan Bayh | Indiana | Democratic | |
| Robert Bennett | Utah | Republican | |
| Joseph Biden | Delaware | Democratic | |
| Jeff Bingaman | New Mexico | Democratic | |
| Kit Bond | Missouri | Republican | |
| Barbara Boxer | California | Democratic | |
| Sherrod Brown | Ohio | Democratic | |
| Sam Brownback | Kansas | Republican | |
| Jim Bunning | Kentucky | Republican | |
| Richard Burr | North Carolina | Republican | |
| Robert Byrd | West Virginia | Democratic | |
| Maria Cantwell | Washington | Democratic | |
| Ben Cardin | Maryland | Democratic | |
| Thomas Carper | Delaware | Democratic | |
| Bob Casey | Pennsylvania | Democratic | |
| Saxby Chambliss | Georgia | Republican | |
| Hillary Clinton | New York | Democratic | |
| Tom Coburn | Oklahoma | Republican | |
| Thad Cochran | Mississippi | Republican | |
| Norm Coleman | Minnesota | Republican | |
| Susan Collins | Maine | Republican | |
| Kent Conrad | North Dakota | Democratic | |
| Bob Corker | Tennessee | Republican | |
| John Cornyn | Texas | Republican | |
| Larry Craig | Idaho | Republican | |
| Michael Crapo | Idaho | Republican | |
| Jim DeMint | South Carolina | Republican | |
| Christopher Dodd | Connecticut | Democratic | |
| Elizabeth Dole | North Carolina | Republican | |
| Pete Domenici | New Mexico | Republican | |
| Byron Dorgan | North Dakota | Democratic | |
| Dick Durbin | Illinois | Democratic | |
| John Ensign | Nevada | Republican | |
| Michael Enzi | Wyoming | Republican | |
| Russell Feingold | Wisconsin | Democratic | |
| Dianne Feinstein | California | Democratic | |
| Lindsey Graham | South Carolina | Republican | |
| Charles Grassley | Iowa | Republican | |
| Judd Gregg | New Hampshire | Republican | |
| Chuck Hagel | Nebraska | Republican | |
| Tom Harkin | Iowa | Democratic | |
| Orrin Hatch | Utah | Republican | |
| Kay Bailey Hutchison | Texas | Republican | |
| James Inhofe | Oklahoma | Republican | |
| Daniel Inouye | Hawaii | Democratic | |
| Johnny Isakson | Georgia | Republican | |
| Tim Johnson | South Dakota | Democratic | |
| Edward Kennedy | Massachusetts | Democratic | |
| John Kerry | Massachusetts | Democratic | |
| Amy Klobuchar | Minnesota | Democratic | |
| Herb Kohl | Wisconsin | Democratic | |
| Jon Kyl | Arizona | Republican | |
| Mary Landrieu | Louisiana | Democratic | |
| Frank Lautenberg | New Jersey | Democratic | |
| Patrick Leahy | Vermont | Democratic | |
| Carl Levin | Michigan | Democratic | |
| Joseph Lieberman | Connecticut | Independent | |
| Blanche Lincoln | Arkansas | Democratic | |
| Trent Lott | Mississippi | Republican | Sen. Trent Lott retired at the end of 2007. Rep. Roger Wicker (R-Miss.) was appointed to replace him. Wicker was sworn in on Jan. 22, 2008. |
| Richard Lugar | Indiana | Republican | |
| Mel Martinez | Florida | Republican | |
| John McCain | Arizona | Republican | |
| Claire McCaskill | Missouri | Democratic | |
| Mitch McConnell | Kentucky | Republican | |
| Robert Menendez | New Jersey | Democratic | |
| Barbara Mikulski | Maryland | Democratic | |
| Lisa Murkowski | Alaska | Republican | |
| Patty Murray | Washington | Democratic | |
| Ben Nelson | Nebraska | Democratic | |
| Bill Nelson | Florida | Democratic | |
| Barack Obama | Illinois | Democratic | |
| Mark Pryor | Arkansas | Democratic | |
| Jack Reed | Rhode Island | Democratic | |
| Harry Reid | Nevada | Democratic | |
| Pat Roberts | Kansas | Republican | |
| Jay Rockefeller | West Virginia | Democratic | |
| Kenneth Salazar | Colorado | Democratic | |
| Bernard Sanders | Vermont | Independent | |
| Chuck Schumer | New York | Democratic | |
| Jeff Sessions | Alabama | Republican | |
| Richard Shelby | Alabama | Republican | |
| Gordon Smith | Oregon | Republican | |
| Olympia Snowe | Maine | Republican | |
| Arlen Specter | Pennsylvania | Republican | |
| Debbie Stabenow | Michigan | Democratic | |
| Ted Stevens | Alaska | Republican | |
| John Sununu | New Hampshire | Republican | |
| Jon Tester | Montana | Democratic | |
| Craig Thomas | Wyoming | Republican | Entered office on January 4, 2007. Left office on June 4, 2007. |
| John Thune | South Dakota | Republican | |
| David Vitter | Louisiana | Republican | |
| George Voinovich | Ohio | Republican | |
| John Warner | Virginia | Republican | |
| Jim Webb | Virginia | Democratic | |
| Sheldon Whitehouse | Rhode Island | Democratic | |
| Roger Wicker | Mississippi | Republican | Roger Wicker was sworn-in as U.S. Senator for the state of Mississippi on Jan. 22, 2008. Wicker was appointed by Mississippi Gov. Haley Barbour to replace Sen. Trent Lott, who retired at the end of 2007. |
| Ron Wyden | Oregon | Democratic |
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