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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Bingaman, Jeff [D-NM]* 10/13/2011
Sen. Murkowski, Lisa [R-AK]* 10/13/2011
Sen. Begich, Mark [D-AK]* 10/13/2011
Sen. Coons, Christopher A. [D-DE]* 10/13/2011
Sen. Burr, Richard [R-NC]* 10/13/2011
Sen. Tester, Jon [D-MT]* 10/13/2011
Sen. Alexander, Lamar [R-TN] 11/14/2011
Sen. Boozman, John [R-AR] 05/08/2012
Sen. Durbin, Richard [D-IL] 05/08/2012
Sen. Webb, Jim [D-VA] 05/08/2012