Overview of the 52nd Illinois House District
The 52nd Illinois House District spans several affluent suburbs northwest of Chicago, including Barrington, Algonquin, Fox River Grove, Inverness, Island Lake, Volo, Wauconda, and parts of Libertyville and Mundelein. Democratic candidates Erin Chan Ding and Maria Peterson compete in the primary to challenge incumbent Republican Rep. Martin McLaughlin of Barrington Hills in the general election.
Erin Chan Ding: Progressive Voice from South Barrington
Erin Chan Ding, 44, a freelance journalist residing in South Barrington, serves on the Barrington Community Unit School District 220 Board of Education. She pushes for progressive revenue measures, reforms to Tier 2 state pensions, and a graduated state income tax. Ding opposes Illinois joining the federal tax-credit scholarship program. Her detailed policy responses highlight a left-leaning stance within the Democratic Party.
Maria Peterson: Moderate Approach from North Barrington
Maria Peterson, 63, a former attorney and small business owner from North Barrington, advocates a pragmatic, moderate perspective despite some progressive views. Her parents immigrated to the U.S. from Mexico. Peterson prioritizes public health, stating, “Nothing matters more than keeping people healthy and alive.” She supports expanding affordable health care access, preserving vaccination programs, bolstering community health centers, and protecting reproductive health services. “As the federal government pulls back funding for health care, vaccines, and essential public health services, Illinois must act as a safeguard,” she added. “No one in our district should delay care, ration medication, or risk their health because of cost or politics.”
Peterson evaluates policies based on practicality: “I approach policy through a practical lens rooted in basic needs. If a proposal does not meaningfully improve stability, safety, or opportunity, and if it is not funded and enforceable from the start, I will not vote for it, even if that puts me at odds with party leadership.”
Shared Positions and Strategic Edge
Both candidates align on several issues, showcasing energy and expertise from Ding alongside Peterson’s fiscal discipline and cross-party collaboration potential. Peterson’s focus on state finances and economic stability positions her strongly against the Republican incumbent in the fall contest.

