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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Enzi, Michael B. [R-WY]* 10/03/2007
Sen. Johnson, Tim [D-SD]* 10/03/2007
Sen. Conrad, Kent [D-ND]* 10/03/2007
Sen. Thune, John [R-SD]* 10/03/2007
Sen. Barrasso, John [R-WY]* 10/03/2007
Sen. Brown, Sherrod [D-OH]* 10/03/2007
Sen. Tester, Jon [D-MT]* 10/03/2007
Sen. Cantwell, Maria [D-WA] 10/15/2007
Sen. Wyden, Ron [D-OR] 10/18/2007