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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Bingaman, Jeff [D-NM]* 10/29/2009
Sen. Murkowski, Lisa [R-AK]* 10/29/2009
Sen. Crapo, Mike [R-ID] 11/03/2009
Sen. Landrieu, Mary L. [D-LA] 12/16/2009
Sen. Risch, James E. [R-ID] 12/16/2009
Sen. Klobuchar, Amy [D-MN] 02/22/2010