2018 Arizona's 8th congressional district special election
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| Arizona's 8th congressional district | |||||||||||||||||
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| Turnout | 40.43% | ||||||||||||||||
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| Elections in Arizona | 
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A special election for Arizona's 8th congressional district was held in 2018 subsequent to the resignation of Republican U.S. Representative Trent Franks. Governor Doug Ducey called a special primary election for Tuesday, February 27, 2018, and a special general election for the balance of Franks' eighth term for Tuesday, April 24, 2018.
Republican nominee and former Arizona Senate president pro tem Debbie Lesko won a closer-than-expected race against Democratic challenger Hiral Tipirneni.