U.S. Sen.Bob Casey, D-PA, right, and Republican challenger U.S. Rep. Lou Barletta, second from left, prepare before their second debate, Friday Oct. 26, 2018, in the studio of KDKA-TV in Pittsburgh. Casey, 58, of Scranton, is seeking a third six-year term. Barletta, 62, of Hazleton, is in his fourth term in Congress. (AP Photo/Gene J. Puskar)
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