Lupe Castillo
Lost the 2026 race for Illinois's 4th District.
- Last margin
- −55.0
- Lost 2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative records
Background
As listed by the official candidate list, Wikidata and campaign filings. 99chambers does not summarize platforms or endorsements.
- On the ballot as
- pharmacy technician and candidate for this district in 2024
Every race Castillo has run
Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Castillo 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's 4th District | General | Lost | Patty Garcia (D), Chris Getty (I) | 16.1% | D+55.0 | D+28.9 | |
| 2024 | U.S. House, IL-4 | General | Lost | Jesús G. "Chuy" García (D), Ed Hershey (WCP) | 27.3% | D+40.2 | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Polls of Castillo’s races
The 2026 general average had Castillo behind by 31.0; Castillo lost by 55.0.
| Race | Average | Result |
|---|---|---|
| 2026 · 1 poll | D+31.0 | D+55.0 |
Source: 99chambers polling average on Election Day; 2026 results: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Who Castillo has run against
- Patty Garcia (D) · 2026 general, lost
- Jesús G. "Chuy" García (D) · 2024 election, lost
Source: 99chambers results archive; 2026: civicAPI (unofficial)
The seat
- Illinois's 4th District · lean D+33.5 · 80th most Democratic of 435
FEC H4IL04117
Source: 99chambers: presidential results on current lines (MEDSL precinct returns); Identity links: Wikidata, congress-legislators, Open States, FEC