Illinois 11

Jeff Walter (R) vs Bill Foster (D).

Called by the AP: Bill Foster (D). Bill Foster (D) 68.7%; Jeff Walter (R) 31.3%. Source: The Associated Press.

Cook: Solid D. Public polls: 0.

Atlas pre-election model — built only from data frozen on October 29, 2026; first published November 3 after polls closed, so it is a test of the method, not a prediction. Republican chance in that model: 0%.