| 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 | Ben Nelson (D) - Nebraska |
| Lisa Murkowski (R) - Alaska | Mitch McConnell (R) - Kentucky | Mel Martinez (R) - Florida |
| Trent Lott (R) - Mississippi | Joseph Lieberman (I) - Connecticut | Jon Kyl (R) - Arizona |
| Johnny Isakson (R) - Georgia | Daniel Inouye (D) - Hawaii | 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 | Mark Dayton (D) - Minnesota | 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 | 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 | Max Baucus (D) - Montana |
| George Allen (R) - Virginia | Wayne Allard (R) - Colorado | Lamar Alexander (R) - Tennessee |
| Daniel Akaka (D) - Hawaii | Craig Thomas (R) - Wyoming | John Thune (R) - South Dakota |
| David Vitter (R) - Louisiana | George Voinovich (R) - Ohio | John Warner (R) - Virginia |
