Democrats participating in 2008-S2544 | ||
| Tammy Baldwin | s1o | Wisconsin Democrat |
| Shelley Berkley | s1o | Nevada Democrat |
| Jeff Bingaman | s1o | NM Democrat Jr Senator |
| Timothy Bishop | s1o | New York Democrat |
| Earl Blumenauer | s1o | Oregon Democrat |
| Leonard Boswell | s1o | Iowa Democrat |
| Rick Boucher | s1o | Virginia Democrat |
| Barbara Boxer | s1o | CA Democratic incumbent |
| Corrine Brown | s1o | Florida Democrat |
| Sherrod Brown | s1o | OH Democratic challenger, U.S. Rep. |
| Hillary Clinton | s1o | NY Democrat Jr Senator |
| Steve Cohen | s1o | Tennessee Democrat |
| Joe Courtney | s1o | Connecticut Democrat |
| Elijah Cummings | s1o | Maryland Democrat |
| Peter Defazio | s1o | Oregon Democrat |
| Rosa DeLauro | s1o | Connecticut Democrat |
| John Dingell | s1o | Michigan Democrat |
| Richard Durbin | s1o | IL Democrat Sr Senator |
| Keith Ellison | s1o | Minnesota Democrat |
| Sam Farr | s1o | California Democrat |
| Dianne Feinstein | s1o | CA Democrat Sr Senator |
| Bob Filner | s1o | California Democrat |
| Raul Grijalva | s1o | Arizona Democrat |
| Luis Gutierrez | s1o | Illinois Democrat |
| Tom Harkin | s1o | IA Democrat Jr Senator |
| Ruben Hinojosa | s1o | Texas Democrat |
| Rush Holt | s1o | New Jersey Democrat |
| Steve Kagen | s1o | Wisconsin Democrat |
| Patrick Kennedy | s1o | Rhode Island Democrat |
| John Kerry | s1o | MA Democrat Jr Senator |
| Dale Kildee | s1o | Michigan Democrat |
| Dennis Kucinich | s1o | Ohio Democrat |
| Frank Lautenberg | s1o | NJ Democrat Sr Senator |
| Barbara Lee | s1o | California Democrat |
| Carl Levin | s1o | MI Democrat Sr Senator |
| John Lewis | s1o | Georgia Democrat |
| Joseph Lieberman | s1o | CT Democratic Jr Senator; Gore's VP nominee; ran for Pres. 2004 |
| Zoe Lofgren | s1o | California Democrat |
| Betty McCollum | s1o | Minnesota Democrat |
| Jim McDermott | s1p | Washington Democrat |
| Michael McNulty | s1o | New York Democratic/Ind./Cons. |
| Robert Menendez | s1o | New Jersey Democrat |
| George Miller | s1o | California Democrat |
| Patty Murray | s1o | WA Democratic incumbent |
| Jerrold Nadler | s1o | New York Dem./Lib./Working-Families |
| Barack Obama | s1o | IL Democratic Jr Senator |
| Donald Payne | s1o | New Jersey Democrat |
| Jack Reed | s1o | RI Democrat Sr Senator |
| John Rockefeller | s1o | WV Democratic Jr Senator |
| Tim Ryan | s1o | Ohio Democrat |
| Charles Schumer | s1o | NY Democratic incumbent |
| David Scott | s1o | Georgia Democrat |
| Albio Sires | s1o | New Jersey Democrat |
| Hilda Solis | s1o | California Democrat |
| Debbie Stabenow | s1o | MI Democrat Jr Senator |
| Bart Stupak | s1o | Michigan Democrat |
| Betty Sutton | s1o | Ohio Democrat |
| Sheldon Whitehouse | s1o | RI Democratic Jr Senator, previously attorney general |
| Lynn Woolsey | s1o | California Democrat |
| Albert Wynn | s1o | Maryland Democrat |
Republicans participating in 2008-S2544 |
Independents participating in 2008-S2544 |
| Democrats:
60
Republicans: 0 Independents: 0 |