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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Durbin, Richard [D-IL]* 03/26/2010
Sen. Merkley, Jeff [D-OR] 04/26/2010
Sen. Begich, Mark [D-AK] 04/26/2010
Sen. Crapo, Mike [R-ID] 04/29/2010
Sen. Risch, James E. [R-ID] 04/29/2010
Sen. Specter, Arlen [D-PA] 07/13/2010