1992Final resultsIncumbent defeated
1992 election for Idaho Legislative District 18
Idaho State Senate · Idaho
Roger B. Madsen (R) won with 55.3% of the vote, defeating Cynthia Scanlin (D) by 10.6 points.
Roger B. MadsenRepublican · winner
55.3%7,472
Cynthia ScanlinDemocrat · incumbent
44.7%6,038
13,510 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 1992
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET