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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. McCaskill, Claire [D-MO]* 01/30/2012
Sen. DeMint, Jim [R-SC]* 01/30/2012
Sen. Udall, Mark [D-CO]* 01/30/2012
Sen. Rubio, Marco [R-FL]* 01/30/2012
Sen. Ayotte, Kelly [R-NH]* 01/30/2012
Sen. Portman, Rob [R-OH]* 01/30/2012
Sen. Thune, John [R-SD]* 01/30/2012
Sen. Johanns, Mike [R-NE]* 01/30/2012
Sen. Burr, Richard [R-NC] 01/31/2012