1988Final results
1988 election for Missouri House District 66
Missouri House of Representatives · Missouri
Matt Oneill (D) won with 66.6% of the vote, defeating Dennis Lang (R) by 33.2 points.
Matt OneillDemocrat · winner · incumbent
66.6%8,563
Dennis LangRepublican
33.4%4,293
12,856 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 1988
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET