IL-4 House
Patty Garcia (D) is the clear favorite to win the 2026 IL-4 House race — about a 86% chance, winning by about 17 points in the projection. Updated daily from 1 poll.
Why this forecast
This forecast is poll-driven: 1 poll of the race so far. After weighting them by recency and correcting each pollster's house effect, the model (TabPFN) predicts D+17.4 — a 86% Democratic win. With only a poll or two this early, the forecast stays cautious and leans partly on the seat's history.
The polls behind it
1 poll · newest firstFrequently asked questions
Who is winning the 2026 IL-4 House race?
VotePredictor's model favors Patty Garcia (D), with roughly a 86% chance of winning and a projected margin of D+17.4.
What do the polls say in the IL-4 House race?
There is 1 poll of this race. The most recent, from The Bullfinch Group (2026-08-04), showed D+19.0. VotePredictor's poll-weighted projection is D+17.4.
Who are the candidates in the 2026 IL-4 House race?
Patty Garcia is the Democratic candidate; Lupe Castillo is the Republican.
When is the 2026 IL-4 House election?
Election Day is Tuesday, November 3, 2026. VotePredictor refreshes this forecast every day until then.
How does VotePredictor forecast the IL-4 House race?
It is a poll-driven model. Recent polls are weighted by recency and adjusted for each pollster's historical house effect, then a machine-learning model (TabPFN) trained on U.S. races from 1998–2025 turns them into a projected margin and win probability.
Which party matches you?
These candidates split on taxes, health care, guns, and abortion. See where you land — and which members of Congress actually vote like you.