2016Final results
2016 election for Montana Senate District 15
Montana State Senate · Montana
Ryan Osmundson (R) won with 76.9% of the vote, defeating Sean McConnaha (D) by 53.7 points.
Ryan OsmundsonRepublican · winner
76.9%7,806
Sean McConnahaDemocrat
23.1%2,351
The same year, the district voted R+54.2 for president; this race was R+53.7.10,157 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET