Bernas appeared to outpace Mussman by a margin of 16.1 percent on Tuesday in the county.
In comparison, the 2014 winner, Democrat Michelle Mussman, won by a margin of 2.5 percent in that jurisdiction, beating Republican Jim Moynihan, who received 11,263 votes to Mussman's 11,831.
2018 State House race results vs. 2014
Precinct/ County/ Township
GOP 2018
Votes/%
Dem. 2018
Votes/%
GOP 2014
Votes/%
Dem. 2014
Votes/%
Cook County
Jillian Rose Bernas
12,084/ 41.94%
Michelle Mussman
17/ 58.06%
Jim Moynihan
11,263/ 48.8%
Michelle Mussman
11,831/ 51.2%