In this Friday, Sept. 7, 2018 photo, Mike Espy, a Democrat and former President Bill Clinton's first agriculture secretary, gives a thumbs up sign of approval at the Jackson, Miss., opening of his campaign headquarters, as to the direction of his campaign for November's special election to fill the unexpired term of U.S. Sen. Thad Cochran, R-Miss., who retired in April. He faces appointed Republican U.S. Sen. Cindy Hyde-Smith, R-Miss., Republican state Sen. Chris McDaniel, who almost unseated Cochran four years ago in the party's primary runoff, and Tobey Bernard Bartee, a former military intelligence officer who is also a Democrat. Party labels do not appear on the ballot. (AP Photo/Rogelio V. Solis)

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