2020Final results
2020 election for Montana House District 79
Montana House of Representatives · Montana
Rob Farris-Olsen (D) won with 55.5% of the vote, defeating Dennison J. Rivera (R) by 11.0 points.
Rob Farris-OlsenDemocrat · winner · incumbent
55.5%3,749
Dennison J. RiveraRepublican
44.5%3,006
6,755 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET