Pennsylvania 7
Ryan Mackenzie (R) vs Bob Brooks (D).
Called by the AP: Bob Brooks (D). Bob Brooks (D) 56.8%; Ryan Mackenzie (R) 43.2%. Source: The Associated Press.
Cook: Lean D. Public polls: 5.
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: 18%.