1972Final results
1972 election for Illinois Legislative District 50
Illinois State Senate · Illinois
John A. Davidson (R) won with 53.8% of the vote, defeating Joseph P. Londrigan (D) by 7.5 points.
John A. DavidsonRepublican · winner
53.8%49,917
Joseph P. LondriganDemocrat
46.2%42,929
92,846 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 1972
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET