The 2012 congressional election in Montana was held on November 6, 2012, to determine who would represent the state of Montana in the United States House of Representatives. At the time, Montana had one seat in the House. Incumbent Denny Rehberg did not run for reelection, choosing instead to run unsuccessfully for the seat in the U.S. Senate. A primary election was held on June 5, 2012. Republican businessman Steve Daines won the open seat.
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