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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Barrasso, John [R-WY]* 03/12/2008
Sen. Bingaman, Jeff [D-NM]* 03/12/2008
Sen. Domenici, Pete V. [R-NM]* 03/12/2008
Sen. Baucus, Max [D-MT]* 03/12/2008
Sen. Tester, Jon [D-MT]* 03/12/2008
Sen. Salazar, Ken [D-CO]* 03/12/2008
Sen. Bennett, Robert F. [R-UT]* 03/12/2008