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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Grassley, Chuck [R-IA]* 05/07/2010
Sen. Nelson, Ben [D-NE]* 05/07/2010
Sen. Johanns, Mike [R-NE]* 05/07/2010
Sen. Leahy, Patrick J. [D-VT]* 05/07/2010
Sen. Ensign, John [R-NV] 05/10/2010
Sen. Mikulski, Barbara A. [D-MD] 05/10/2010
Sen. Chambliss, Saxby [R-GA] 05/12/2010
Sen. Isakson, Johnny [R-GA] 05/17/2010
Sen. Brownback, Sam [R-KS] 05/18/2010
Sen. Alexander, Lamar [R-TN] 05/20/2010