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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Enzi, Michael B. [R-WY]* 09/22/2010
Sen. Harkin, Tom [D-IA]* 09/22/2010
Sen. Alexander, Lamar [R-TN] 09/29/2010
Sen. Crapo, Mike [R-ID] 09/29/2010