JEFFERSON CITY, Mo. (AP)– Democratic Sen. Claire McCaskill is teaming up with Sen. Rob Portman and other Republicans to push for a new way of relaxing tariffs on some materials imported by U.S. manufacturers.
McCaskill, of Missouri, and Portman, of Ohio, said Wednesday they will try to amend their proposal to a business bill pending in the Senate.

McCaskill also has filed the measure as a stand-alone bill with a list of Republican co-sponsors that includes Senate Minority Leader Mitch McConnell of Kentucky and fellow Missouri Sen. Roy Blunt.
McCaskill highlighted the bill as an example of her ability to work with Republicans to find compromise a central theme of her re-election campaign this year. Portman has been mentioned as a potential vice presidential partner for Republican presidential candidate Mitt Romney.

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