Republican Sen. John McCain and his wife, Cindy, walk out to greet supporters after voting in the Arizona primary election. The veteran lawmaker faces Kelli Ward and three other opponents in the primary. (Photo by Mindy Riesenberg/Cronkite News)

Republican Sen. John McCain and Maricopa County Sheriff Joe Arpaio both won Arizona primary races Tuesday night, setting up tough races in November’s general election. Read more election news here.

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