Michael Bruce Quigley is an American politician serving as the U.S. representative for Illinois's 5th congressional district since the April 7, 2009 special election. The district includes most of Chicago's North Side and several of its western suburbs. He is a member of the Democratic Party. Quigley is a former member of the Cook County Board of Commissioners, where he represented Chicago's northside neighborhoods of Lakeview, Uptown, and Rogers Park. He previously taught environmental policy and Chicago politics as an adjunct professor at Loyola University Chicago.