The Ballot Brief
Vermilion County, Illinois

Illinois House District 104

2 candidates are tracked for Illinois House District 104 on the November 3, 2026 ballot: Mary Catherine Roberson and Brandun Schweizer. Candidate information follows official Vermilion County election filings; verify with the official election office linked below.

About this race

Mary Catherine Roberson (Democratic), Brandun Schweizer (Republican) meet on the November 3 ballot; Brandun Schweizer is the sitting member, per the General Assembly's roster. Party nominees were chosen at the March 17 primary (plurality, no runoffs); independent and new-party candidates qualified by petition. The field is the State Board of Elections' 2026 General Election candidate list (status Active, read September 7, 2026). This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Brandun Schweizer, is on the ballot.

Illinois › Vermilion County › Illinois House District 104

Mary Catherine Roberson

Democratic

Top priorities
  • Supports expanded healthcare access for the district
  • Focuses on workers' rights and community safety
  • Wants stronger violence-prevention and police-accountability policies

Per the campaign site.

Biography

Mary Catherine Roberson is the Director of Constituent Services for U.S. Representative Robin Kelly and a Danville-raised community advocate focused on violence prevention, per her campaign site. She has been recognized by East Central Illinois Business magazine as a Forty Under 40 Woman of the Year, per the same source. Roberson is the Democratic nominee for Illinois House District 104 on the November 3, 2026 ballot.

Campaign site (opens in a new tab)
Brandun Schweizer

Brandun Schweizer

Republican Incumbent

Biography

Brandun Schweizer is a retired United States Marine Corps Master Sergeant who served 21 years as a recruiter, intelligence analyst, and equal opportunity advisor, retiring in January 2023, per his Illinois House of Representatives biography. He now works as a Code Enforcement Officer for the City of Danville and is a member of the IBEW labor union, per the same source. Schweizer and his wife, Amy, own and operate Tiny Troops Soccer and live in Danville with their three sons. No campaign website was found as of September 20, 2026.

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Voting info and more

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Questions about this race

Who is running for Illinois House District 104 in 2026?

2 candidates are tracked for Illinois House District 104 on the November 3, 2026 ballot: Mary Catherine Roberson and Brandun Schweizer. Candidate information follows official Vermilion County election filings; verify with the official election office linked below.

When is the Illinois House District 104 election in Illinois?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Illinois are on the Illinois election hub at theballotbrief.com.

How do I see my exact Vermilion County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Vermilion County and state election office filings. Bios and priorities carry their attribution inline.

Cross-check with the official Illinois election office, or see the full Vermilion County sample ballot and your exact ballot by address.

The rest of your Vermilion County ballot

4 tracked races in Vermilion County, Illinois. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
Illinois House District 101Illinois House District 102See all 4 Vermilion County races
Candidate profiles
Mary Catherine Roberson, full profileBrandun Schweizer, full profileOfficial Illinois election office