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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Biden, Joseph R., Jr. [D-DE]* 09/22/2008
Sen. Brownback, Sam [R-KS]* 09/22/2008
Sen. Boxer, Barbara [D-CA]* 09/22/2008
Sen. Murkowski, Lisa [R-AK]* 09/22/2008