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* = Original cosponsor

CosponsorDate Cosponsored
Sen. Salazar, Ken [D-CO]* 07/22/2008
Sen. Collins, Susan M. [R-ME]* 07/22/2008
Sen. Lieberman, Joseph I. [ID-CT]* 07/22/2008
Sen. Thune, John [R-SD]* 07/22/2008
Sen. Grassley, Chuck [R-IA] 07/31/2008