1978Final results
1978 election for Illinois's 13th District
U.S. House · Illinois
Robert McClory (R) won with 61.2% of the vote, defeating Frederick J. Steffen (D) by 22.3 points.
Robert McCloryRepublican · winner
61.2%64,060
Frederick J. SteffenDemocrat
38.8%40,675
104,738 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET