1978Final results
1978 election for Montana House District 80
Montana House of Representatives · Montana
Robert L. Marks (R) won with 53.3% of the vote, defeating Vincent D. Yannone (D) by 6.5 points.
Robert L. MarksRepublican · winner · incumbent
53.3%2,005
Vincent D. YannoneDemocrat
46.7%1,759
3,764 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET