1984Flipped from DemocraticFinal resultsIncumbent defeated
1984 election for Montana Senate District 19
Montana State Senate · Montana
Gene Thayer (R) won with 53.3% of the vote, defeating Harry K. Berg (D) by 6.7 points, a seat Democrats won last time.
Gene ThayerRepublican · winner
53.3%3,586
Harry K. BergDemocrat · incumbent
46.7%3,136
6,722 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET