2010Final results
2010 election for Montana House District 5
Montana House of Representatives · Montana
Keith Regier (R) won with 80.2% of the vote, defeating James Mahnke (D) by 60.4 points.
Keith RegierRepublican · winner · incumbent
80.2%3,547
James MahnkeDemocrat
19.8%876
4,423 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET