Maggie Trevor, the Democratic incumbent on the Cook County Board of Commissioners for District 9, is running for reelection in the Nov. 3, 2026, general election. She faces Republicans Ammie Kessem and Jon Luers.
Trevor's county profile shows committee seats spanning finance, health, zoning and the Forest Preserve District. Those assignments give her a vote on the county budget, property tax levy, land-use decisions and health system oversight. Major decisions require a board majority.
Candidate information
- Party: Democratic
- Office sought: Cook County Commission, District 9
- Hometown: Rolling Meadows, Illinois (born and raised there, according to Trevor's 2022 WTTW Voters Guide response)
- Education: Doctorate in political science, University of Chicago; master's in political science, University of Chicago; bachelor's in chemistry, University of Chicago; Rolling Meadows High School
Experience and public service
Trevor has held the following roles, according to her campaign website, her county profile and BallotReady data:
- Cook County commissioner, District 9 (current). She serves on board committees including Finance, Health and Hospitals, Environment and Sustainability, Criminal Justice, Zoning and Building, Transportation and several others. She also vice-chairs the Human Relations Committee and the Finance Subcommittee on Workers' Compensation.
- Forest Preserve District Board committee member, including vice-chair of the Capital Development and Ecological Restoration Committee.
- Principal, Trevor Research Services LLC (since 2015, per BallotReady)
- Vice president of healthcare and survey services, YouGov (2011–2014, per BallotReady)
- Senior manager of market analytics, Blue Shield of California (2007–2011, per BallotReady)
- Market research consultant, Kaiser Permanente (1999–2007, per BallotReady)
- Assistant professor of political science, University of Iowa (1993–1999, per BallotReady)
- Member, City of Rolling Meadows Environmental Committee (2015, per Trevor)
- Bicycle and pedestrian liaison, City of Rolling Meadows Traffic Committee (2017, per Trevor)
On the issues
The following positions are drawn from Trevor's campaign website responses collected by BallotReady. All statements reflect the candidate's own claims unless otherwise noted.
Healthcare and mental health: Trevor said she has supported Cook County's efforts to improve access to affordable healthcare, including behavioral health services. She said she will continue fighting to maintain that access "in the face of policies at the federal level that are raising new barriers to essential care."
What the profile does not specify: Trevor did not identify specific county programs, funding amounts or measurable goals tied to these efforts.
Public safety and criminal justice: Trevor said law enforcement needs resources and training to prevent crime and prosecute violent offenders. She also said communities need mental health services and social supports for "an appropriate and effective response to each call for help."
Environment and Forest Preserves: Trevor said she will defend stewardship of the Cook County Forest Preserve system and fight for environmental safeguards for water, air and natural areas.
Transportation and infrastructure: Trevor said she will continue advocating for improved public transit options and infrastructure friendly to pedestrians and bicyclists.
Taxes and government efficiency: Trevor said smarter use of tax dollars requires the County Board to lead in coordinating state, municipal and county services.
Note: Trevor's profile also includes positions on firearms regulation, education, civil rights and reproductive rights. Those statements originated from a prior state-house campaign and have not been verified as current county-board proposals.
Editor's note: Policy positions above are drawn from the candidate's own responses submitted via BallotReady. The Park Ridge Wire did not interview the candidate. A Personal PAC endorsement was recorded in September 2022 but has not been verified for the 2026 race. Endorsements from IUOE Local 150, Illinois Sierra Club, IBEW Local 134, Chicago Federation of Labor, Equality IL and Citizen Action Illinois are listed on BallotReady.
