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* = Original cosponsor

Cosponsor Date Cosponsored
Sen. Lieberman, Joseph I. [ID-CT]* 12/15/2009
Sen. Whitehouse, Sheldon [D-RI]* 12/15/2009
Sen. Bingaman, Jeff [D-NM]* 12/15/2009
Sen. Warner, Mark R. [D-VA] 12/17/2009