2020Final results
2020 election for Illinois Representative District 100
Illinois House of Representatives · Illinois
C.D. Davidsmeyer (R) won with 75.1% of the vote, defeating Brandon Adams (D) by 54.6 points.
C.D. DavidsmeyerRepublican · winner · incumbent
75.1%38,578
Brandon AdamsDemocrat
20.5%10,533
Ralph SidesOther party
4.4%2,250
51,361 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET