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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Levin, Carl [D-MI]* 04/28/2008
Sen. Voinovich, George V. [R-OH]* 04/28/2008
Sen. Lieberman, Joseph I. [ID-CT]* 04/28/2008
Sen. Carper, Thomas R. [D-DE]* 04/28/2008
Sen. Snowe, Olympia J. [R-ME]* 04/28/2008
Sen. Coleman, Norm [R-MN]* 04/28/2008
Sen. Sanders, Bernard [I-VT]* 04/28/2008
Sen. Boxer, Barbara [D-CA]* 04/28/2008
Sen. Stabenow, Debbie [D-MI]* 04/28/2008
Sen. Durbin, Richard [D-IL]* 04/28/2008