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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Voinovich, George V. [R-OH]* 12/21/2010
Sen. Cantwell, Maria [D-WA]* 12/21/2010
Sen. Murray, Patty [D-WA]* 12/21/2010
Sen. Inhofe, James M. [R-OK]* 12/21/2010