Michael Bruce Quigley (born October 17, 1958) is an American politician serving as the U.S. representative for Illinois's 5th congressional district, serving since the April 7, 2009 special election. He is a member of the Democratic Party. In early 2009, incumbent Democratic U.S. Congressman Rahm Emanuel of Illinois's 5th congressional district resigned to become White House Chief of Staff to newly elected President Barack Obama. The congressional vacancy was filled via the special election. Quigley was one of twelve candidates to file for the special Democratic primary—the real contest in this heavily Democratic district. He won the April special election with 69% of the vote over Republican challenger and militia leader Rosanna Pulido. The district includes most of Chicago's North Side, as well as several of the city's western suburbs. 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.