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Editor's Note: There are just 43 days until Election Day, and the NBC News political unit each day will profile the most competitive races this midterm season.
Democrat John Barrow has the distinction of being the last white Democratic congressman in the Deep South -- a Blue Dog who’s broken with his party on big votes, including against passage of the federal health-care law. He beat the odds in 2012 by defeating Republican Lee Anderson in this Augusta district by a comfortable margin, but Republicans think this might be their year. Republican Rick Allen, a wealthy construction company owner, is considered a stronger candidate than some of Barrow’s past foes.