In △ABC, ∠A=80∘,∠B=65∘,∠C=35∘. The internal angle bisectors of ∠B,∠C meet their respective opposite sides at E,F. Let B′ be a point on segment AC such that AB′=AB. Let the circumcircle of BB′E intersects FE at J.
Find the measure (in degrees) of ∠AJB.