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* = Original cosponsor

Cosponsor Date Cosponsored
Sen. Specter, Arlen [D-PA]* 03/03/2010
Sen. Hatch, Orrin G. [R-UT]* 03/03/2010
Sen. Casey, Robert P., Jr. [D-PA] 03/04/2010
Sen. Bayh, Evan [D-IN] 03/04/2010