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Photo by AP

FILE - In this file photo taken March 27, 2013, Arkansas Lt. Gov. Mark Darr, a Republican, presides in the Senate chamber at the Arkansas state Capitol in Little Rock, Ark. Darr said Thursday, Aug. 29, 2013 he is dropping out of the race for a seat in Congress representing south Arkansas amid ethics questions over his campaign finance reports. (AP Photo/Danny Johnston, File)