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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Leahy, Patrick J. [D-VT]* 02/25/2010
Sen. Casey, Robert P., Jr. [D-PA]* 02/25/2010
Sen. Cochran, Thad [R-MS]* 02/25/2010
Sen. Franken, Al [D-MN] 03/04/2010