| George Voinovich (R) - Ohio | David Vitter (R) - Louisiana | John Thune (R) - South Dakota |
| 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 |
| Mary Landrieu (D) - Louisiana | 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 | Michael Enzi (R) - Wyoming |
| John Ensign (R) - Nevada | 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 |
| Norm Coleman (R) - Minnesota | Thad Cochran (R) - Mississippi | Tom Coburn (R) - Oklahoma |
| Saxby Chambliss (R) - Georgia | John Chafee (R) - Rhode Island | Thomas Carper (D) - Delaware |
| Maria Cantwell (D) - Washington | Richard Burr (R) - North Carolina | Conrad Burns (R) - Montana |
| Jim Bunning (R) - Kentucky | Sam Brownback (R) - Kansas | Christopher Bond (R) - Missouri |
| Jeff Bingaman (D) - New Mexico | Robert Bennett (R) - Utah | Max Baucus (D) - Montana |
| George Allen (R) - Virginia | Wayne Allard (R) - Colorado | Lamar Alexander (R) - Tennessee |
| John Warner (R) - Virginia |
