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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Feingold, Russell D. [D-WI]* 05/05/2010
Sen. Durbin, Richard [D-IL]* 05/05/2010
Sen. Specter, Arlen [D-PA]* 05/05/2010
Sen. Brown, Sherrod [D-OH]* 05/05/2010
Sen. Johnson, Tim [D-SD]* 05/05/2010
Sen. Whitehouse, Sheldon [D-RI]* 05/05/2010
Sen. Lautenberg, Frank R. [D-NJ] 05/06/2010
Sen. Merkley, Jeff [D-OR] 05/06/2010
Sen. Boxer, Barbara [D-CA] 05/07/2010