A veteran police lieutenant was reassigned last week after a one-day trip to Chicago by Attorney General William Barr caught Chicago Police Department leadership and the mayor’s office by surprise. Sources told the Chicago Sun-Times that Lt. Patrick Quinn was pulled from his position in the Crime Prevention and Information Center in police headquarters and sent to the Rogers Park District on the North Side after Mayor Lori Lightfoot and CPD brass learned of Barr’s visit during a conference call Nov. 17 — just a day before Barr, the nation’s top law enforcement officer, was scheduled to arrive in Chicago....