2010Flipped from DemocraticFinal results
2010 election for Missouri House District 100
Missouri House of Representatives · Missouri
Marsha Haefner (R) won with 64.3% of the vote, defeating Andrew Spavale (D) by 30.3 points, a seat Democrats won last time.
Marsha HaefnerRepublican · winner
64.3%9,593
Andrew SpavaleDemocrat
34.0%5,072
Randall LewisConstitution
1.7%256
14,921 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET