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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Vitter, David [R-LA]* 09/10/2008
Sen. Inhofe, James M. [R-OK]* 09/10/2008
Sen. Martinez, Mel [R-FL]* 09/10/2008
Sen. Warner, John [R-VA]* 09/10/2008
Sen. Levin, Carl [D-MI]* 09/10/2008