RepublicanNo state or federal office heldLost the 2026 general
Cesar A. Guillen
Lost the 2026 race for Illinois Representative District 39.
- Last margin
- −79.2
- Lost 2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative records
Every race Guillen has run
Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Guillen won voters the party’s presidential nominee did not; primaries have no baseline.
| Year | Office | Stage | Result | Opponents | Share | Margin | Baseline | Against baseline |
|---|---|---|---|---|---|---|---|---|
| 2026 | Illinois Representative District 39 | General | Lost | Will Guzzardi (D) | 10.4% | D+79.2 | D+61.8 |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Who Guillen has run against
- Will Guzzardi (D) · 2026 general, lost
Source: 99chambers results archive; 2026: civicAPI (unofficial)
The seat
- Illinois Representative District 39 · lean D+64.1 · 15th most Democratic of 118
Source: 99chambers: presidential results on current lines (MEDSL precinct returns)