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1966 Illinois U.S. House District 8 Election

Illinois · 2 candidates · See every 1966 U.S. House race

Who won the 1966 Illinois U.S. House District 8 Election?

Daniel D. Rostenkowski won the 1966 Illinois U.S. House District 8 Election. Daniel D. Rostenkowski received 94,631 popular votes (59.89%). The main challenger was John H Leszynski (40.11%).

See the full head-to-head between Rostenkowski and Leszynski

Rostenkowski +19.8 pts · won by 31,254 votes
Daniel D. RostenkowskiDemocraticWINNER59.89%
94,631 votes
John H LeszynskiRepublican40.11%
63,377 votes
Popular-vote totals for this U.S. House election come from the Constituency-Level Elections Archive (CLEA) and the official public record.

Data last verified July 28, 2026.