2018Final results
2018 election for Illinois Representative District 19
Illinois House of Representatives · Illinois
Rob Martwick (D) won with 60.7% of the vote, defeating Ammie Kessem (R) by 21.4 points.
Rob MartwickDemocrat · winner · incumbent
60.7%21,389
Ammie KessemRepublican
39.3%13,852
35,241 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET