111th Congress - Senate Committee Chairs and Ranking Minority Members
| Committee | Chairman | Ranking Minority Member |
| Agriculture | Blanche Lincoln, AR | Saxby Chambliss, GA |
| Appropriations | Daniel K. Inouye, HI | Thad Cochran, MS |
| Armed Services | Carl Levin, MI | John McCain, AZ |
| Banking, Housing, & Urban Affairs | Christopher Dodd, CT | Richard Shelby, AL |
| Budget | Kent Conrad, ND | Judd Gregg, NH |
| Commerce, Science & Transportation | Jay Rockefeller, WV | Kay Bailey Hutchison, TX |
| Energy and Natural Resources | Jeff Bingaman, NM | Lisa Murkowski, AK |
| Environment and Public Works | Barbara Boxer, CA | James Inhofe, OK |
| Finance | Max Baucus, MT | Charles Grassley, IA |
| Foreign Relations | John F. Kerry, MA | Richard Lugar, IN |
| Health, Education, Labor and Pensions | Tom Harkin, IA | Mike Enzi, WY |
| Homeland Security and Governmental Affairs | Joseph Lieberman, CT | Susan Collins, ME |
| Indian Affairs | Byron Dorgan, ND | John Barrasso, WY |
| Intelligence | Dianne Feinstein, CA | Chris Bond, MO |
| Judiciary | Patrick J. Leahy, VT | Jeff Sessions, AL |
| Rules and Administration | Charles Schumer, NY | Robert Bennett, UT |
| Small Business and Entrepreneurship | Mary Landrieu, LA | Olympia Snowe, ME |
| Veteran's Affairs | Daniel Akaka, HI | Richard Burr, NC |
| Special Committee on Aging | Herb Kohl, WI | Bob Corker, TN |
| Select Committee on Ethics | Barbara Boxer, CA | Johnny Isakson, GA |