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* = Original cosponsor

Cosponsor Date Cosponsored
Sen. Harkin, Tom [D-IA]* 07/18/2012
Sen. Sanders, Bernard [I-VT]* 07/18/2012
Sen. Whitehouse, Sheldon [D-RI]* 07/18/2012
Sen. Blumenthal, Richard [D-CT]* 07/18/2012
Sen. Rockefeller, John D., IV [D-WV]* 07/18/2012
Sen. McCaskill, Claire [D-MO]* 07/18/2012