| 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 |
| John Rockefeller (D) - West Virginia | Pat Roberts (R) - Kansas | Mark Pryor (D) - Arkansas |
| Ben Nelson (D) - Nebraska | Bill Nelson (D) - Florida | Lisa Murkowski (R) - Alaska |
| Mitch McConnell (R) - Kentucky | John McCain (R) - Arizona | Mel Martinez (R) - Florida |
| Richard Lugar (R) - Indiana | Blanche Lincoln (D) - Arkansas | Joseph Lieberman (I) - Connecticut |
| Mary Landrieu (D) - Louisiana | Jon Kyl (R) - Arizona | Tim Johnson (D) - South Dakota |
| Johnny Isakson (R) - Georgia | 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 |
| 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 |
| Hillary Clinton (D) - New York | Saxby Chambliss (R) - Georgia | John Chafee (R) - Rhode Island |
| Robert Byrd (D) - West Virginia | 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 | George Allen (R) - Virginia | Wayne Allard (R) - Colorado |
| Lamar Alexander (R) - Tennessee | Craig Thomas (R) - Wyoming | John Thune (R) - South Dakota |
| David Vitter (R) - Louisiana | George Voinovich (R) - Ohio | John Warner (R) - Virginia |
