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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Warner, Mark R. [D-VA]* 11/28/2012
Sen. Rubio, Marco [R-FL]* 11/28/2012
Sen. Cardin, Benjamin L. [D-MD] 11/29/2012
Sen. Udall, Mark [D-CO] 11/29/2012