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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Roberts, Pat [R-KS]* 02/16/2007
Sen. Kennedy, Edward M. [D-MA]* 02/16/2007
Sen. Burr, Richard [R-NC]* 02/16/2007
Sen. Murray, Patty [D-WA]* 02/16/2007
Sen. Hatch, Orrin G. [R-UT]* 02/16/2007
Sen. Brown, Sherrod [D-OH]* 02/16/2007
Sen. Clinton, Hillary Rodham [D-NY]* 02/16/2007
Sen. Isakson, Johnny [R-GA]* 02/16/2007
Sen. Bingaman, Jeff [D-NM]* 02/16/2007
Sen. Collins, Susan M. [R-ME]* 02/16/2007
Sen. Biden, Joseph R., Jr. [D-DE]* 02/16/2007