2018Final results
2018 election for Illinois Comptroller
Comptroller · Illinois
Susana Mendoza (D) won with 59.9% of the vote, defeating Darlene Senger (R) by 22.9 points.
Susana MendozaDemocrat · winner
59.9%2,716,853
Darlene SengerRepublican
37.0%1,678,346
Claire BallLibertarian
3.1%140,543
Mary Arline Vann-MetcalfOther party
0.0%17
4,537,297 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:26 PM 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 Sep 30, 2026, 12:26 PM ET
The candidates
Susana Mendoza (D)Darlene Senger (R)
Also on the ballot: Claire Ball (Libertarian), 3.1%; Mary Arline Vann-Metcalf (Other party), 0.0%