| 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 | 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 | Kent Conrad (D) - North Dakota |
| 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 | Joseph Biden (D) - Delaware |
| Robert Bennett (R) - Utah | Max Baucus (D) - Montana | George Allen (R) - Virginia |
| Wayne Allard (R) - Colorado | Lamar Alexander (R) - Tennessee | David Vitter (R) - Louisiana |
| George Voinovich (R) - Ohio | John Warner (R) - Virginia |
