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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Collins, Susan M. [R-ME]* 08/03/2010
Sen. Sanders, Bernard [I-VT]* 08/03/2010
Sen. Lieberman, Joseph I. [ID-CT] 09/28/2010
Sen. Kerry, John F. [D-MA] 09/29/2010
Sen. Brown, Sherrod [D-OH] 12/14/2010