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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Barrasso, John [R-WY]* 08/02/2012
Sen. Coburn, Tom [R-OK]* 08/02/2012
Sen. Inhofe, James M. [R-OK]* 08/02/2012
Sen. Lee, Mike [R-UT]* 08/02/2012
Sen. Murkowski, Lisa [R-AK]* 08/02/2012
Sen. Roberts, Pat [R-KS]* 08/02/2012
Sen. Vitter, David [R-LA]* 08/02/2012
Sen. Wicker, Roger F. [R-MS]* 08/02/2012
Sen. Enzi, Michael B. [R-WY] 09/19/2012