2016Flipped from DemocraticFinal results
2016 election for Missouri House District 70
Missouri House of Representatives · Missouri
Mark Matthiesen (R) won with 52.9% of the vote, defeating Byron Delear (D) by 5.8 points, a seat Democrats won last time.
Mark MatthiesenRepublican · winner
52.9%9,491
Byron DelearDemocrat
47.1%8,447
17,938 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET