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* = Original cosponsor

CosponsorDate Cosponsored
Sen. Snowe, Olympia J. [R-ME]* 12/10/2009
Sen. Begich, Mark [D-AK]* 12/10/2009
Sen. Murkowski, Lisa [R-AK]* 12/10/2009
Sen. Kerry, John F. [D-MA] 02/04/2010
Sen. Rockefeller, John D., IV [D-WV] 03/16/2010
Sen. Cantwell, Maria [D-WA] 03/22/2010