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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Thune, John [R-SD]* 11/17/2011
Sen. Johnson, Tim [D-SD]* 11/17/2011
Sen. Franken, Al [D-MN]* 11/17/2011
Sen. Harkin, Tom [D-IA]* 11/17/2011
Sen. Grassley, Chuck [R-IA]* 11/17/2011