2012 Montana U.S. Senate Election

Montana · 3 candidates · See every 2012 U.S. Senate race

Who won the 2012 Montana U.S. Senate Election?

Jon Tester won the 2012 Montana U.S. Senate Election. Jon Tester received 236,123 popular votes (48.58%). The main challenger was Denny Rehberg (44.86%).

See the full head-to-head between Tester and Rehberg

Tester +3.7 pts · won by 18,072 votes

Jon Tester DemocraticWINNER48.58%

236,123 votes

Denny Rehberg Republican44.86%

218,051 votes

Dan CoxLibertarian6.56%

31,892 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.