Still countingUnofficial results
Illinois Representative District 104
Illinois House of Representatives · Illinois
Mary Catherine Roberson leads Brandun Schweizer by 2.5 points with 88% of the expected vote counted. The race has not been called.
Mary Catherine RobersonDemocrat · leading
51.3%15,211
Brandun SchweizerRepublican · incumbent
48.7%14,466
88% of the expected vote counted · 29,677 votes
Source: civicAPI unofficial results and race callsUpdated Nov 7, 2026, 7:01 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Mary Catherine RobersonBrandun Schweizer
$19.9K
Raised by the campaign
$172K
$17.6K
Spent by the campaign
$178.7K
$4.7K
Cash on hand
$28.4K
Campaign money: Illinois State Board of Elections, through Sep 30, 2026.
Source: Illinois State Board of Elections campaign filingsUpdated Sep 30, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Mary Catherine Roberson
- 82%
- Brandun Schweizer
- 18%
- Projected margin
- D+6.9