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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Thune, John [R-SD]* 07/26/2007
Sen. Vitter, David [R-LA]* 07/26/2007
Sen. Coburn, Tom [R-OK]* 07/26/2007
Sen. Crapo, Mike [R-ID]* 07/26/2007
Sen. Hagel, Chuck [R-NE]* 07/26/2007
Sen. Wyden, Ron [D-OR]* 07/26/2007