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535

IL-4

  • Patty Garcia (Dem)
  • Lupe Castillo (Rep)
  • Chris Getty (Ind)

Favors Dem

Democrats100%

Democrats are favored, winning 100,000 of 100,000 simulated elections.

Favors Dem

Democrats100%

Democrats are favored, winning 100,000 of 100,000 simulated elections.

Forecast detail

as of Oct 4, 2026, 2:30 AM EDT

Estimated margin

D+50.4

5th–95th interval

D+36.5 to D+64.4

Estimated margin

D+50.4

5th–95th interval

D+36.5 to D+64.4

Win probability over time

Dem win probability Rep win probability Tossup band

Polls

Dem-leaning poll Rep-leaning poll current average: D+17.9 current average: D+17.9

Pollster Dates Sample Results Margin House adj. Source
The Bullfinch Group Jul 31–Aug 3, 2026 653 rv Patty Garcia 34.0% Lupe Castillo 15.0% Chris Getty 9.0% Other 4.0% D+19.0 D+17.9 D+1.1 lean removed Source

Dispatches about this race

No dispatches about this race yet.