1998Flipped from RepublicanFinal results
1998 election for Montana Senate District 45
Montana State Senate · Montana
Jon Tester (D) won with 55.6% of the vote, defeating Roger Debruycker (R) by 11.1 points, a seat Republicans won last time.
Jon TesterDemocrat · winner
55.6%3,803
Roger DebruyckerRepublican
44.4%3,041
6,844 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 1998
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET