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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Rockefeller, John D., IV [D-WV]* 03/14/2011
Sen. Mikulski, Barbara A. [D-MD]* 03/14/2011
Sen. Franken, Al [D-MN]* 03/14/2011
Sen. Sanders, Bernard [I-VT]* 03/14/2011
Sen. Merkley, Jeff [D-OR]* 03/14/2011
Sen. Begich, Mark [D-AK]* 03/14/2011
Sen. Cardin, Benjamin L. [D-MD] 10/31/2011