Three Democratic incumbents representing Downers Grove, Westmont and Woodridge in the Illinois House won their races Nov. 3 by wide margins.
State Reps. Margaret DeLaRosa, Martha "Marti" Deuter and Anne Stava each defeated their Republican challengers, according to unofficial results reported by Shaw Local with about 53% of DuPage County ballots counted. As we reported Nov. 4, Democrats held all three seats.
Here is a closer look at each race.
District 42: DeLaRosa defeats Trussell
DeLaRosa received 28,199 votes to 15,137 for Republican Stephanie Trussell, according to unofficial results. DeLaRosa was appointed to the District 42 seat in October 2025, replacing Terra Costa Howard. This was her first election to the seat.
DeLaRosa, a former Glenbard District 87 school board member, campaigned on property tax relief for seniors, lower energy costs and improved public transit. Trussell, who hosts a weekly show on AM560 The Answer, ran on stemming the number of people leaving Illinois, citing high taxes, cost of living, job-market decline, crime concerns and what she called a failing education system.
District 42 includes portions of Downers Grove, Glen Ellyn, Lisle, Lombard and Wheaton.
District 45: Deuter tops Parrilli
Deuter collected 24,637 votes to 15,138 for Republican Gina Parrilli, a Westmont village trustee. Deuter, a former Elmhurst City Council member, was first elected to the legislature in 2024.
District 45 covers portions of Downers Grove, Westmont, Willowbrook, Elmhurst, Hinsdale, Lombard, Oak Brook, Oakbrook Terrace, Clarendon Hills, Addison and Villa Park.
District 81: Stava wins fifth term
Stava earned 28,783 votes to 15,246 for Republican Laura Hois, who also challenged Stava in 2020. The win sends Stava to Springfield for a fifth term.
District 81 includes portions of Downers Grove, Woodridge, Westmont, Naperville, Lisle and Darien.
All three results remain unofficial.
