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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Sununu, John E. [R-NH]* 06/20/2008
Sen. Domenici, Pete V. [R-NM]* 06/20/2008
Sen. Roberts, Pat [R-KS]* 06/20/2008
Sen. Collins, Susan M. [R-ME]* 06/20/2008
Sen. Hatch, Orrin G. [R-UT]* 06/20/2008
Sen. Enzi, Michael B. [R-WY]* 06/20/2008
Sen. Dole, Elizabeth [R-NC]* 06/20/2008
Sen. Warner, John [R-VA] 06/23/2008
Sen. Thune, John [R-SD] 06/23/2008
Sen. Snowe, Olympia J. [R-ME] 06/23/2008
Sen. Coleman, Norm [R-MN] 06/23/2008
Sen. Murkowski, Lisa [R-AK] 06/24/2008
Sen. Barrasso, John [R-WY] 06/24/2008
Sen. Burr, Richard [R-NC] 06/25/2008