1984Final resultsIncumbent defeated
1984 election for Missouri Senate District 1
Missouri State Senate · Missouri
Irene Treppler (R) won with 50.5% of the vote, defeating James W. Murphy (D) by 1.0 points.
Irene TrepplerRepublican · winner
50.5%35,323
James W. MurphyDemocrat · incumbent
49.5%34,623
69,946 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