| LUGAR, Richard Green | — | IN |
| INOUYE, Daniel Ken | — | HI |
| D'AMATO, Alfonse Marcello | — | NY |
| SANTORUM, Richard John | — | PA |
| GRAMM, William Philip | — | TX |
| LAUTENBERG, Frank Raleigh | — | NJ |
| WELLSTONE, Paul David | — | MN |
| STEVENS, Theodore Fulton | — | AK |
| MACK, Connie, III | — | FL |
| DOMENICI, Pete Vichi | — | NM |
| FORD, Wendell Hampton | — | KY |
| BINGAMAN, Jesse Francis (Jeff), Jr. | — | NM |
| BUMPERS, Dale | — | AR |
| BROWNBACK, Sam Dale | — | KS |
| ASHCROFT, John David | — | MO |
| KERREY, J. Robert | — | NE |
| FEINGOLD, Russell Dana | — | WI |
| LIEBERMAN, Joseph I. | — | CT |
| BYRD, Robert Carlyle | — | WV |
| HUTCHINSON, Timothy | — | AR |
| SARBANES, Paul Spyros | — | MD |
| DODD, Christopher John | — | CT |
| DeWINE, Michael | — | OH |
| GREGG, Judd Alan | — | NH |
| SPECTER, Arlen | — | PA |
| BREAUX, John Berlinger | — | LA |
| TORRICELLI, Robert Guy | — | NJ |
| BAUCUS, Max Sieben | — | MT |
| CHAFEE, John Hubbard | — | RI |
| CAMPBELL, Ben Nighthorse | — | CO |
| THURMOND, James Strom | — | SC |
| DORGAN, Byron Leslie | — | ND |
| GRAMS, Rod | — | MN |
| CRAIG, Larry Edwin | — | ID |
| THOMAS, Craig Lyle | — | WY |
| BOND, Christopher Samuel | — | MO |
| SNOWE, Olympia Jean | — | ME |
| JEFFORDS, James Merrill | — | VT |
| ALLARD, A. Wayne | — | CO |
| ROBB, Charles Spittal | — | VA |
| ABRAHAM, Spencer | — | MI |
| MURKOWSKI, Frank Hughes | — | AK |
| HUTCHISON, Kathryn Ann Bailey | — | TX |
| COVERDELL, Paul | — | GA |
| CLELAND, Joseph Maxwell | — | GA |
| ROTH, William Victor, Jr. | — | DE |
| KEMPTHORNE, Dirk | — | ID |
| SMITH, Gordon Harold | — | OR |
| KERRY, John Forbes | — | MA |
| MOYNIHAN, Daniel Patrick | — | NY |
| BURNS, Conrad | — | MT |
| FRIST, William H. | — | TN |
| KENNEDY, Edward Moore | — | MA |
| LOTT, Chester Trent | — | MS |
| KOHL, Herbert H. | — | WI |
| DASCHLE, Thomas Andrew | — | SD |
| GRAHAM, Daniel Robert | — | FL |
| NICKLES, Donald Lee | — | OK |
| BENNETT, Robert Foster | — | UT |
| GLENN, John Herschel, Jr. | — | OH |
| AKAKA, Daniel Kahikina | — | HI |
| BRYAN, Richard H | — | NV |
| WARNER, John William | — | VA |
| GORTON, Thomas Slade, III | — | WA |
| CONRAD, Kent | — | ND |
| FAIRCLOTH, Duncan McLauchlin | — | NC |
| THOMPSON, Fred Dalton | — | TN |
| HELMS, Jesse | — | NC |
| BIDEN, Joseph Robinette (Joe), Jr. | — | DE |
| SMITH, Robert C. | — | NH |
| Barbara Boxer | Democrat | CA |
| Dianne Feinstein | Democrat | CA |
| Tom Harkin | Democrat | IA |
| Richard J. Durbin | Democrat | IL |
| Mary L. Landrieu | Democrat | LA |
| Barbara A. Mikulski | Democrat | MD |
| Carl Levin | Democrat | MI |
| Harry Reid | Democrat | NV |
| Ron Wyden | Democrat | OR |
| Jack Reed | Democrat | RI |
| Tim Johnson | Democrat | SD |
| Patrick J. Leahy | Democrat | VT |
| Patty Murray | Democrat | WA |
| John D. Rockefeller, IV | Democrat | WV |
| Richard C. Shelby | Republican | AL |
| John McCain | Republican | AZ |
| Jon Kyl | Republican | AZ |
| Chuck Grassley | Republican | IA |
| Daniel Coats | Republican | IN |
| Pat Roberts | Republican | KS |
| Mitch McConnell | Republican | KY |
| Susan M. Collins | Republican | ME |
| Thad Cochran | Republican | MS |
| James M. Inhofe | Republican | OK |
| Orrin G. Hatch | Republican | UT |
| Michael B. Enzi | Republican | WY |