U.S. House seat for Arizona's 8th congressional district. Representatives serve two-year terms.

7 candidates filed, 2 active for the 2026 House election in Arizona District 8. Party primary on Jul 21, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Abraham \"Abe\" Hamadeh R | 56.5% | 368,613 | |
| 2022 | Debbie Lesko R | 100.0% | 197,555 | |
| 2020 | Debbie Lesko R | 59.6% | 422,467 | |
| 2018 | Debbie Lesko R | 55.5% | 304,404 | |
| 2016 | Trent Franks R | 68.6% | 298,896 | |
| 2014 | Trent Franks R | 75.8% | 169,776 | |
| 2012 | Trent Franks R | 63.3% | 272,791 | |
| 2010 | Gabrielle Giffords D | 48.8% | 283,578 | |
| 2008 | Gabrielle Giffords D | 54.7% | 328,263 | |
| 2006 | Gabrielle Giffords D | 54.3% | 253,702 | |
| 2004 | Jim Kolbe R | 60.4% | 303,769 | |
| 2002 | Jim Kolbe R | 63.3% | 200,400 |