2018Flipped from RepublicanFinal resultsIncumbent defeated
2018 election for Illinois Legislative District 21
Illinois State Senate · Illinois
Laura Ellman (D) won with 50.6% of the vote, defeating Michael G. Connelly (R) by 1.2 points, a seat Republicans won last time.
Laura EllmanDemocrat · winner
50.6%49,928
Michael G. ConnellyRepublican · incumbent
49.4%48,749
98,677 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