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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Klobuchar, Amy [D-MN]* 10/15/2007
Sen. Durbin, Richard [D-IL]* 10/15/2007
Sen. Grassley, Chuck [R-IA]* 10/15/2007
Sen. Harkin, Tom [D-IA]* 10/15/2007
Sen. Brown, Sherrod [D-OH]* 10/15/2007
Sen. Voinovich, George V. [R-OH]* 10/15/2007
Sen. Feingold, Russell D. [D-WI]* 10/15/2007
Sen. Kohl, Herb [D-WI]* 10/15/2007
Sen. Obama, Barack [D-IL]* 10/15/2007
Sen. Inhofe, James M. [R-OK] 10/25/2007
Sen. Coburn, Tom [R-OK] 10/26/2007