| James Webb (D) - Virginia | Mark Warner (D) - Virginia | George Voinovich (R) - Ohio |
| David Vitter (R) - Louisiana | John Thune (R) - South Dakota | Jon Tester (D) - Montana |
| 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 | Pat Roberts (R) - Kansas | Mark Pryor (D) - Arkansas |
| Ben Nelson (D) - Nebraska | Lisa Murkowski (R) - Alaska | Mitch McConnell (R) - Kentucky |
| Claire McCaskill (D) - Missouri | Mel Martinez (R) - Florida | Richard Lugar (R) - Indiana |
| Blanche Lincoln (D) - Arkansas | Mary Landrieu (D) - Louisiana | Jon Kyl (R) - Arizona |
| Amy Klobuchar (D) - Minnesota | 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 |
| Michael Enzi (R) - Wyoming | John Ensign (R) - Nevada | Byron Dorgan (D) - North Dakota |
| Pete Domenici (R) - New Mexico | Elizabeth Dole (R) - North Carolina | Jim DeMint (R) - South Carolina |
| Mike Crapo (R) - Idaho | Larry Craig (R) - Idaho | John Cornyn (R) - Texas |
| Bob Corker (R) - Tennessee | Susan Collins (R) - Maine | Norm Coleman (R) - Minnesota |
| Thad Cochran (R) - Mississippi | Tom Coburn (R) - Oklahoma | Saxby Chambliss (R) - Georgia |
| Thomas Carper (D) - Delaware | Richard Burr (R) - North Carolina | Jim Bunning (R) - Kentucky |
| Sam Brownback (R) - Kansas | Christopher Bond (R) - Missouri | Robert Bennett (R) - Utah |
| Evan Bayh (D) - Indiana | Max Baucus (D) - Montana | John Barrasso (R) - Wyoming |
| Wayne Allard (R) - Colorado | Lamar Alexander (R) - Tennessee | Roger Wicker (R) - Mississippi |
| Ron Wyden (D) - Oregon |
