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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Brownback, Sam [R-KS]* 06/11/2008
Sen. Bunning, Jim [R-KY]* 06/11/2008
Sen. Burr, Richard [R-NC]* 06/11/2008
Sen. DeMint, Jim [R-SC]* 06/11/2008
Sen. Enzi, Michael B. [R-WY]* 06/11/2008
Sen. Inhofe, James M. [R-OK]* 06/11/2008
Sen. Martinez, Mel [R-FL]* 06/11/2008
Sen. Thune, John [R-SD]* 06/11/2008
Sen. Vitter, David [R-LA]* 06/11/2008
Sen. Voinovich, George V. [R-OH]* 06/11/2008
Sen. Coburn, Tom [R-OK] 06/16/2008
Sen. Allard, Wayne [R-CO] 06/16/2008