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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Collins, Susan M. [R-ME]* 03/04/2010
Sen. Bingaman, Jeff [D-NM]* 03/04/2010
Sen. Rockefeller, John D., IV [D-WV]* 03/04/2010
Sen. Mikulski, Barbara A. [D-MD]* 03/04/2010