Jonathan Paton won the Republican bid for U.S. House District 1.
Paton was running against fellow Republicans Gaither Martin and Patrick Gatti.
Democrat Ann Kirkpatrick won in Tuesday's primary election over Wenona Benally Baldenegro.
Paton and Kirkpatrick were considered the front-runners.
The district extends from the northern outskirts of Tucson on the south to the Arizona-Utah line on the north. It includes Flagstaff, much of eastern Arizona and a number of American Indian reservations.
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