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FILE - In this Aug. 29, 2012 file photo, former Minnesota Gov. Tim Pawlenty looks over the main stage during a sound check at the Republican National Convention in Tampa, Fla. U.S. Sen. Al Franken's announcement Thursday, Dec. 7, 2017 that he will resign triggers a mad-dash special election in 2018 to finish the Minnesota Democrat's term, with Pawlenty seen as a top possibility for Republicans to cash in an unforeseen pickup chance. (AP Photo/J. Scott Applewhite, File)