- Akaka, Daniel K. [D-HI] (10)
- Alexander, Lamar [R-TN] (11)
- Allard, Wayne [R-CO] (10)
- Barrasso, John [R-WY] (10)
- Baucus, Max [D-MT] (12)
- Bayh, Evan [D-IN] (11)
- Bennett, Robert F. [R-UT] (11)
- Biden, Joseph R., Jr. [D-DE] (8)
- Bingaman, Jeff [D-NM] (10)
- Bond, Christopher S. 'Kit' [R-MO] (10)
- Boxer, Barbara [D-CA] (11)
- Brown, Sherrod [D-OH] (10)
- Brownback, Sam [R-KS] (9)
- Bunning, Jim [R-KY] (11)
- Burr, Richard [R-NC] (10)
- Byrd, Robert C. [D-WV] (11)
- Cantwell, Maria [D-WA] (11)
- Cardin, Benjamin L. [D-MD] (10)
- Carper, Thomas R. [D-DE] (10)
- Casey, Robert P., Jr. [D-PA] (10)
- Chambliss, Saxby [R-GA] (10)
- Clinton, Hillary Rodham [D-NY] (9)
- Coburn, Tom [R-OK] (11)
- Cochran, Thad [R-MS] (10)
- Coleman, Norm [R-MN] (10)
- Collins, Susan M. [R-ME] (11)
- Conrad, Kent [D-ND] (11)
- Corker, Bob [R-TN] (9)
- Cornyn, John [R-TX] (11)
- Craig, Larry E. [R-ID] (10)
- Crapo, Michael D. [R-ID] (10)
- DeMint, Jim [R-SC] (11)
- Dodd, Christopher J. [D-CT] (9)
- Dole, Elizabeth [R-NC] (11)
- Domenici, Pete V. [R-NM] (10)
- Dorgan, Byron L. [D-ND] (11)
- Durbin, Richard [D-IL] (12)
- Ensign, John [R-NV] (11)
- Enzi, Michael B. [R-WY] (10)
- Feingold, Russell D. [D-WI] (11)
- Feinstein, Dianne [D-CA] (11)
- Graham, Lindsey [R-SC] (11)
- Grassley, Chuck [R-IA] (11)
- Gregg, Judd [R-NH] (11)
- Hagel, Chuck [R-NE] (10)
- Harkin, Tom [D-IA] (12)
- Hatch, Orrin G. [R-UT] (12)
- Hutchison, Kay Bailey [R-TX] (11)
- Inhofe, James M. [R-OK] (12)
- Inouye, Daniel K. [D-HI] (10)
| - Isakson, Johnny [R-GA] (11)
- Johnson, Tim [D-SD] (12)
- Kennedy, Edward M. [D-MA] (11)
- Kerry, John F. [D-MA] (12)
- Klobuchar, Amy [D-MN] (10)
- Kohl, Herb [D-WI] (10)
- Kyl, Jon [R-AZ] (9)
- Landrieu, Mary L. [D-LA] (12)
- Lautenberg, Frank R. [D-NJ] (11)
- Leahy, Patrick J. [D-VT] (11)
- Levin, Carl [D-MI] (12)
- Lieberman, Joseph I. [D-CT] (11)
- Lincoln, Blanche L. [D-AR] (10)
- Lugar, Richard G. [R-IN] (11)
- Martinez, Mel [R-FL] (11)
- McCain, John [R-AZ] (5)
- McCaskill, Claire [D-MO] (10)
- McConnell, Mitch [R-KY] (12)
- Menendez, Robert [D-NJ] (11)
- Mikulski, Barbara A. [D-MD] (10)
- Murkowski, Lisa [R-AK] (10)
- Murray, Patty [D-WA] (11)
- Nelson, Bill [D-FL] (11)
- Nelson, E. Benjamin [D-NE] (10)
- Pryor, Mark L. [D-AR] (11)
- Reed, Jack [D-RI] (11)
- Reid, Harry [D-NV] (11)
- Roberts, Pat [R-KS] (12)
- Rockefeller, John D. 'Jay', IV [D-WV] (12)
- Salazar, Ken [D-CO] (10)
- Sanders, Bernard [I-VT] (10)
- Schumer, Charles E. [D-NY] (11)
- Sessions, Jeff [R-AL] (9)
- Shelby, Richard C. [R-AL] (10)
- Smith, Gordon H. [R-OR] (10)
- Snowe, Olympia J. [R-ME] (11)
- Specter, Arlen [R-PA] (11)
- Stabenow, Debbie [D-MI] (10)
- Stevens, Ted [R-AK] (10)
- Sununu, John E. [R-NH] (9)
- Tester, Jon [D-MT] (10)
- Thune, John [R-SD] (10)
- Vitter, David [R-LA] (10)
- Voinovich, George V. [R-OH] (10)
- Warner, John [R-VA] (10)
- Webb, Jim [D-VA] (12)
- Whitehouse, Sheldon [D-RI] (10)
- Wicker, Roger [R-MS] (9)
- Wyden, Ron [D-OR] (11)
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