| Senator Amy Klobuchar (MN, D) |
| Senator Barack Obama (IL, D) |
| Senator Barbara A. Mikulski (MD, D) |
| Senator Barbara Boxer (CA, D) |
| Senator Benjamin L. Cardin (MD, D) |
| Senator Bernard Sanders (VT, I) |
| Senator Bill Nelson (FL, D) |
| Senator Byron L. Dorgan (ND, D) |
| Senator Carl Levin (MI, D) |
| Senator Charles E. Schumer (NY, D) |
| Senator Christopher J. Dodd (CT, D) |
| Senator Claire McCaskill (MO, D) |
| Senator Daniel K. Akaka (HI, D) |
| Senator Daniel K. Inouye (HI, D) |
| Senator Debbie Stabenow (MI, D) |
| Senator Dianne Feinstein (CA, D) |
| Senator Edward M. Kennedy (MA, D) |
| Senator Evan Bayh (IN, D) |
| Senator Frank R. Lautenberg (NJ, D) |
| Senator Harry Reid (NV, D) |
| Senator Herb Kohl (WI, D) |
| Senator Hillary Rodham Clinton (NY, D) |
| Senator Jack Reed (RI, D) |
| Senator Jeff Bingaman (NM, D) |
| Senator John D., IV Rockefeller (WV, D) |
| Senator John Ensign (NV, R) |
| Senator John F. Kerry (MA, D) |
| Senator John Warner (VA, R) |
| Senator Joseph I. Lieberman ( C, I) |
| Senator Joseph R., Jr. Biden (DE, D) |
| Senator Kent Conrad (ND, D) |
| Senator Maria Cantwell (WA, D) |
| Senator Mark L. Pryor (AR, D) |
| Senator Mary L. Landrieu (LA, D) |
| Senator Patrick J. Leahy (VT, D) |
| Senator Patty Murray (WA, D) |
| Senator Richard Durbin (IL, D) |
| Senator Richard G. Lugar (IN, R) |
| Senator Robert C. Byrd (WV, D) |
| Senator Robert Menendez (NJ, D) |
| Senator Ron Wyden (OR, D) |
| Senator Sheldon Whitehouse (RI, D) |
| Senator Sherrod Brown (OH, D) |
| Senator Thomas R. Carper (DE, D) |
| Senator Tom Harkin (IA, D) |