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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Vitter, David [R-LA] 06/05/2007
Sen. Hatch, Orrin G. [R-UT] 06/11/2007
Sen. Burr, Richard [R-NC] 03/31/2008
Sen. Wicker, Roger F. [R-MS] 04/10/2008