The Ballot Brief
2026 U.S. House

Illinois's 11th Congressional District — 2026 Candidates

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U.S. House · IL-11
Primary: Tuesday, March 17, 2026 General: Tuesday, November 3, 2026

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2026 candidates we're tracking in IL-11

Bill Foster

Bill Foster

DemocraticIncumbent

Top priorities

From the campaign site

  • Championing sustained federal funding for scientific research
  • Advocating for consumer protections and an economy that works for everyone
  • Promoting evidence-based policies, including climate change and energy innovation
About Bill Foster

Foster is a physicist and businessman who co-founded a manufacturing company, Electronic Theatre Controls, at age 19, per the campaign site. He later spent more than two decades as a particle accelerator designer at Fermilab before winning a special election to Congress in 2008, per the campaign site.

Jeff Walter

Republican

Top priorities

From the campaign site

  • Support small businesses and modernize infrastructure
  • Maintain low taxes and balanced budgets
  • Strengthen public safety
About Jeff Walter

Walter is a retired U.S. Navy master chief petty officer with more than 20 years of service and currently serves as mayor of Elburn, Illinois, per the campaign site. He also has a career in technology consulting and holds degrees in finance, manufacturing management and business administration, per the campaign site.

About this race

Illinois's 11th Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The Illinois primary is Tuesday, March 17, 2026, and the general election is Tuesday, November 3, 2026.

Illinois primary details →  ·  Illinois voter guide →