1984Final results
1984 election for Illinois Legislative District 19
Illinois State Senate · Illinois
William F. Mahar (R) won with 68.4% of the vote, defeating Robert H. Kaup Jr. (D) by 36.8 points.
William F. MaharRepublican · winner · incumbent
68.4%56,968
Robert H. Kaup Jr.Democrat
31.6%26,343
83,313 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