Mark Walker appointed to Ann Gillespie’s former state Senate post, moving from 53rd District rep

State Rep. Mark Walker is moving to the other chamber in the General Assembly, appointed Saturday to take the state Senate post Ann Gillespie held before she was tapped to head the Department of Insurance.

Walker, D-Arlington Heights, had been the state representative for the 53rd District and is now the new state senator for the 27th District. The senate district includes most or parts of Arlington Heights, Buffalo Grove, Des Plaines, Mount Prospect, Palatine, Prospect Heights, Rolling Meadows and Schaumburg.