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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Coleman, Norm [R-MN]* 09/09/2008
Sen. Grassley, Chuck [R-IA]* 09/09/2008
Sen. Harkin, Tom [D-IA]* 09/09/2008
Sen. Klobuchar, Amy [D-MN]* 09/09/2008
Sen. Menendez, Robert [D-NJ]* 09/09/2008
Sen. Roberts, Pat [R-KS]* 09/09/2008
Sen. Nelson, Ben [D-NE] 09/12/2008