United States House elections in Arizona (August 28, 2018 Republican primaries)

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	; ; 2018 U.S. House Elections in Arizona
	Primary Date ; August 28, 2018 GOP primaries • Democratic primaries
	Partisan breakdown • Candidates
	Arizona's District Pages District 1 • District 2 • District 3 • District 4 • District 5 • District 6 • District 7• District 8 • District 9
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	2018 U.S. Senate Elections

The 2018 U.S. House of Representatives elections in Arizona took place on November 6, 2018. Voters elected nine candidates to serve in the U.S. House, one from each of the state's nine congressional districts. This page focuses on the Republican Party primary election that took place in each district on August 28, 2018.