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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Collins, Susan M. [R-ME]* 05/21/2009
Sen. Kohl, Herb [D-WI]* 05/21/2009
Sen. Wyden, Ron [D-OR]* 05/21/2009
Sen. Carper, Thomas R. [D-DE]* 05/21/2009
Sen. Stabenow, Debbie [D-MI] 06/10/2009
Sen. Warner, Mark R. [D-VA] 06/16/2009
Sen. Mikulski, Barbara A. [D-MD] 06/25/2009