November 6, 2018
U.S. House
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Tom O'Halleran | Democratic | 143,240 | 53.8% | |
| Wendy Rogers | Republican | 122,784 | 46.2% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Ann Kirkpatrick | Democratic | 161,000 | 54.7% | |
| Lea Marquez Peterson | Republican | 133,083 | 45.3% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Raul Grijalva | Democratic | 114,650 | 63.9% | |
| Nick Pierson | Republican | 64,868 | 36.1% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Paul Gosar | Republican | 188,842 | 68.2% | |
| David Brill | Democratic | 84,521 | 30.5% | |
| Haryaksha Knauer | Other | 3,672 | 1.3% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Andy Biggs | Republican | 186,037 | 59.4% | |
| Joan Greene | Democratic | 127,027 | 40.6% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| David Schweikert | Republican | 173,140 | 55.2% | |
| Anita Malik | Democratic | 140,559 | 44.8% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Ruben Gallego | Democratic | 113,044 | 85.8% | |
| Gary Swing | 18,706 | 14.2% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Debbie Lesko | Republican | 168,835 | 55.5% | |
| Hiral Tipirneni | Democratic | 135,569 | 44.5% |
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Greg Stanton | Democratic | 159,583 | 61.1% | |
| Steve Ferrara | Republican | 101,662 | 38.9% |