1986Final results
1986 election for Pennsylvania Senate District 4
Pennsylvania State Senate · Pennsylvania
M. Joseph Rocks (D) won with 76.0% of the vote, defeating Thomas Memmo (R) by 52.1 points.
M. Joseph RocksDemocrat · winner · incumbent
76.0%53,483
Thomas MemmoRepublican
24.0%16,847
70,330 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 1986
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET