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FILE – In this Feb. 6, 2013, file photo Rep. Paul Broun, R-Georgia, announces his plans to run for the U.S. Senate seat being vacated by Sen. Saxby Chambliss in 2014, in Atlanta. A rare open Senate seat in Georgia promises a scrambled 2014 campaign that already has some Republicans quietly nervous. So far Broun, a conservative physician, is one of two Republicans to announce officially for Chambliss's vacated seat. He once called evolution and the Big Bang Theory “lies straight from the pit of Hell.” (AP Photo/David Goldman, File)

Associated Press
FILE – In this Feb. 6, 2013, file photo Rep. Paul Broun, R-Georgia, announces his plans to run for the U.S. Senate seat being vacated by Sen. Saxby Chambliss in 2014, in Atlanta. A rare open Senate seat in Georgia promises a scrambled 2014 campaign that already has some Republicans quietly nervous. So far Broun, a conservative physician, is one of two Republicans to announce officially for Chambliss's vacated seat. He once called evolution and the Big Bang Theory “lies straight from the pit of Hell.”  (AP Photo/David Goldman, File)
FILE – In this Feb. 6, 2013, file photo Rep. Paul Broun, R-Georgia, announces his plans to run for the U.S. Senate seat being vacated by Sen. Saxby Chambliss in 2014, in Atlanta. A rare open Senate seat in Georgia promises a scrambled 2014 campaign that already has some Republicans quietly nervous. So far Broun, a conservative physician, is one of two Republicans to announce officially for Chambliss's vacated seat. He once called evolution and the Big Bang Theory “lies straight from the pit of Hell.” (AP Photo/David Goldman, File)
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