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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Lieberman, Joseph I. [ID-CT]* 04/19/2012
Sen. Brown, Scott P. [R-MA]* 04/19/2012
Sen. Akaka, Daniel K. [D-HI]* 04/19/2012
Sen. Carper, Thomas R. [D-DE]* 04/19/2012
Sen. Durbin, Richard [D-IL] 04/25/2012