Lupe Castillo (R)
Lupe Castillo is the Republican running for the U.S. House in IL-04 in 2026.
- Race
- Illinois House IL-04 · November 3, 2026
- Party
- Republican
- Betting markets
- 1% chance
- Polling average
- 15.0% · 1 polls
Opponents in this race
- Patty Garcia (D)
Polls, odds and results for the race → · All Illinois races →
Sources: civicAPI results; Polling Desk polling average; Kalshi and Polymarket markets; campaign money from the Federal Election Commission (FEC), shown when the candidate raised at least $100,000.