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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Burr, Richard [R-NC]* 09/18/2008
Sen. Domenici, Pete V. [R-NM]* 09/18/2008
Sen. Ensign, John [R-NV]* 09/18/2008
Sen. Hagel, Chuck [R-NE]* 09/18/2008
Sen. Lugar, Richard G. [R-IN]* 09/18/2008
Sen. Grassley, Chuck [R-IA] 09/23/2008
Sen. Thune, John [R-SD] 09/24/2008