Democratic Rep. Kyrsten Sinema, who is running against Republican Rep. Martha McSally for the open Arizona Senate seat Jeff Flake, R-Ariz., is vacating, talks to campaign volunteers, Tuesday, Oct. 2, 2018, in Tempe, Ariz. Arizona's Senate race pits Sinema, a careful politician running as a centrist in a Republican-leaning state, against McSally, a onetime Trump critic turned fan. (AP Photo/Ross D. Franklin)
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