| Craig Thomas (R) - Wyoming | James Talent (R) - Missouri | John Sununu (R) - New Hampshire |
| Ted Stevens (R) - Alaska | Arlen Specter (R) - Pennsylvania | Olympia Snowe (R) - Maine |
| Gordon Smith (R) - Oregon | Richard Shelby (R) - Alabama | Jeff Sessions (R) - Alabama |
| Rick Santorum (R) - Pennsylvania | Ken Salazar (D) - Colorado | Pat Roberts (R) - Kansas |
| Mark Pryor (D) - Arkansas | Ben Nelson (D) - Nebraska | Lisa Murkowski (R) - Alaska |
| Mitch McConnell (R) - Kentucky | John McCain (R) - Arizona | Mel Martinez (R) - Florida |
| Richard Lugar (R) - Indiana | Trent Lott (R) - Mississippi | Blanche Lincoln (D) - Arkansas |
| Jon Kyl (R) - Arizona | Johnny Isakson (R) - Georgia | James Inhofe (R) - Oklahoma |
| Kay Bailey Hutchison (R) - Texas | Orrin Hatch (R) - Utah | Chuck Hagel (R) - Nebraska |
| Judd Gregg (R) - New Hampshire | Chuck Grassley (R) - Iowa | Lindsey Graham (R) - South Carolina |
| William Frist (R) - Tennessee | Russ Feingold (D) - Wisconsin | Michael Enzi (R) - Wyoming |
| John Ensign (R) - Nevada | Byron Dorgan (D) - North Dakota | Pete Domenici (R) - New Mexico |
| Elizabeth Dole (R) - North Carolina | Mike DeWine (R) - Ohio | Jim DeMint (R) - South Carolina |
| Mike Crapo (R) - Idaho | Larry Craig (R) - Idaho | John Cornyn (R) - Texas |
| Susan Collins (R) - Maine | Thad Cochran (R) - Mississippi | Tom Coburn (R) - Oklahoma |
| Saxby Chambliss (R) - Georgia | John Chafee (R) - Rhode Island | Richard Burr (R) - North Carolina |
| Conrad Burns (R) - Montana | Jim Bunning (R) - Kentucky | Sam Brownback (R) - Kansas |
| Christopher Bond (R) - Missouri | Robert Bennett (R) - Utah | Evan Bayh (D) - Indiana |
| George Allen (R) - Virginia | Wayne Allard (R) - Colorado | Lamar Alexander (R) - Tennessee |
| John Thune (R) - South Dakota | David Vitter (R) - Louisiana | George Voinovich (R) - Ohio |
| John Warner (R) - Virginia |
