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* = Original cosponsor

CosponsorDate Cosponsored
Sen. McConnell, Mitch [R-KY]* 02/13/2008
Sen. Akaka, Daniel K. [D-HI]* 02/13/2008
Sen. Alexander, Lamar [R-TN]* 02/13/2008
Sen. Barrasso, John [R-WY]* 02/13/2008
Sen. Baucus, Max [D-MT]* 02/13/2008
Sen. Bayh, Evan [D-IN]* 02/13/2008
Sen. Bennett, Robert F. [R-UT]* 02/13/2008
Sen. Biden, Joseph R., Jr. [D-DE]* 02/13/2008
Sen. Bingaman, Jeff [D-NM]* 02/13/2008
Sen. Bond, Christopher S. [R-MO]* 02/13/2008
Sen. Boxer, Barbara [D-CA]* 02/13/2008
Sen. Brown, Sherrod [D-OH]* 02/13/2008
Sen. Brownback, Sam [R-KS]* 02/13/2008
Sen. Bunning, Jim [R-KY]* 02/13/2008
Sen. Burr, Richard [R-NC]* 02/13/2008
Sen. Byrd, Robert C. [D-WV]* 02/13/2008
Sen. Cantwell, Maria [D-WA]* 02/13/2008
Sen. Cardin, Benjamin L. [D-MD]* 02/13/2008
Sen. Casey, Robert P., Jr. [D-PA]* 02/13/2008
Sen. Chambliss, Saxby [R-GA]* 02/13/2008
Sen. Clinton, Hillary Rodham [D-NY]* 02/13/2008
Sen. Coburn, Tom [R-OK]* 02/13/2008
Sen. Coleman, Norm [R-MN]* 02/13/2008
Sen. Collins, Susan M. [R-ME]* 02/13/2008
Sen. Cornyn, John [R-TX]* 02/13/2008
Sen. Craig, Larry E. [R-ID]* 02/13/2008
Sen. Dodd, Christopher J. [D-CT]* 02/13/2008
Sen. Dole, Elizabeth [R-NC]* 02/13/2008
Sen. Domenici, Pete V. [R-NM]* 02/13/2008
Sen. Durbin, Richard [D-IL]* 02/13/2008
Sen. Ensign, John [R-NV]* 02/13/2008
Sen. Feingold, Russell D. [D-WI]* 02/13/2008
Sen. Gregg, Judd [R-NH]* 02/13/2008
Sen. Hagel, Chuck [R-NE]* 02/13/2008
Sen. Harkin, Tom [D-IA]* 02/13/2008
Sen. Hutchison, Kay Bailey [R-TX]* 02/13/2008
Sen. Inhofe, James M. [R-OK]* 02/13/2008
Sen. Inouye, Daniel K. [D-HI]* 02/13/2008
Sen. Isakson, Johnny [R-GA]* 02/13/2008
Sen. Johnson, Tim [D-SD]* 02/13/2008
Sen. Kennedy, Edward M. [D-MA]* 02/13/2008
Sen. Kerry, John F. [D-MA]* 02/13/2008
Sen. Klobuchar, Amy [D-MN]* 02/13/2008
Sen. Kohl, Herb [D-WI]* 02/13/2008
Sen. Kyl, Jon [R-AZ]* 02/13/2008
Sen. Landrieu, Mary L. [D-LA]* 02/13/2008
Sen. Lautenberg, Frank R. [D-NJ]* 02/13/2008
Sen. Leahy, Patrick J. [D-VT]* 02/13/2008
Sen. Levin, Carl [D-MI]* 02/13/2008
Sen. Lieberman, Joseph I. [ID-CT]* 02/13/2008
Sen. Lincoln, Blanche L. [D-AR]* 02/13/2008
Sen. Lugar, Richard G. [R-IN]* 02/13/2008
Sen. Martinez, Mel [R-FL]* 02/13/2008
Sen. McCain, John [R-AZ]* 02/13/2008
Sen. McCaskill, Claire [D-MO]* 02/13/2008
Sen. Menendez, Robert [D-NJ]* 02/13/2008
Sen. Mikulski, Barbara A. [D-MD]* 02/13/2008
Sen. Murkowski, Lisa [R-AK]* 02/13/2008
Sen. Murray, Patty [D-WA]* 02/13/2008
Sen. Obama, Barack [D-IL]* 02/13/2008
Sen. Pryor, Mark L. [D-AR]* 02/13/2008
Sen. Reed, Jack [D-RI]* 02/13/2008
Sen. Roberts, Pat [R-KS]* 02/13/2008
Sen. Salazar, Ken [D-CO]* 02/13/2008
Sen. Sanders, Bernard [I-VT]* 02/13/2008
Sen. Schumer, Charles E. [D-NY]* 02/13/2008
Sen. Smith, Gordon H. [R-OR]* 02/13/2008
Sen. Snowe, Olympia J. [R-ME]* 02/13/2008
Sen. Specter, Arlen [R-PA]* 02/13/2008
Sen. Stabenow, Debbie [D-MI]* 02/13/2008
Sen. Stevens, Ted [R-AK]* 02/13/2008
Sen. Sununu, John E. [R-NH]* 02/13/2008
Sen. Voinovich, George V. [R-OH]* 02/13/2008
Sen. Whitehouse, Sheldon [D-RI]* 02/13/2008
Sen. Nelson, Bill [D-FL] 02/25/2008
Sen. Wicker, Roger F. [R-MS] 02/25/2008
Sen. Hatch, Orrin G. [R-UT] 04/15/2008