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2020 Arizona U.S. House District 1 Election

Arizona · 2 candidates · See every 2020 U.S. House race

Who won the 2020 Arizona U.S. House District 1 Election?

Tom O'Halleran won the 2020 Arizona U.S. House District 1 Election. Tom O'Halleran received 188,469 popular votes (51.61%). The main challenger was Tiffany Shedd (48.39%).

See the full head-to-head between O'Halleran and Shedd

O'Halleran +3.2 pts · won by 11,760 votes
Tom O'HalleranDemocraticWINNER51.61%
188,469 votes
Tiffany SheddRepublican48.39%
176,709 votes
Popular-vote totals for U.S. House elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.