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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Coons, Christopher A. [D-DE]* 05/16/2012
Sen. Lugar, Richard G. [R-IN]* 05/16/2012
Sen. Isakson, Johnny [R-GA]* 05/16/2012
Sen. Merkley, Jeff [D-OR] 09/10/2012