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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Cardin, Benjamin L. [D-MD]* 02/29/2012
Sen. Klobuchar, Amy [D-MN]* 02/29/2012
Sen. Rubio, Marco [R-FL]* 02/29/2012
Sen. Rockefeller, John D., IV [D-WV]* 02/29/2012
Sen. Wicker, Roger F. [R-MS]* 02/29/2012
Sen. Merkley, Jeff [D-OR]* 02/29/2012
Sen. Blumenthal, Richard [D-CT]* 02/29/2012
Sen. Tester, Jon [D-MT]* 02/29/2012