Sen. John McCain took an early lead against Dr. Kelli Ward. He will now face his toughest challenge against Congresswoman Ann Kirkpatrick in the General Election.
U.S. Senator (REP)
| Candidate | Votes | Percent |
| MCCAIN, JOHN | 0 | 52.5% |
| WARD, KELLI | 0 | 40.1% |
U.S. Senator (DEM)
| Candidate | Votes | Percent |
| KIRKPATRICK, ANN | 0 | 100.00% |