BILLINGS, Mont.—Tim Sheehy has survived late-campaign turbulence to win the Montana Republican U.S. Senate primary and will square off in November’s general election against three-term Sen. Jon Tester (D-Mont.).
Mr. Sheehy, 38, a first-time candidate, was up by 58 percentage points when the Associated Press called the June 4 GOP primary contest. Former Montana Secretary of State Brad Johnson, 72, finished second.
