The skirmishes appear to have been sparked by the cancellation of the rally. The protesters were delighted, and the Trump supporters were angry.
The Trimp campaign's statement seemed to infer that the Police advised cancellation, but the Chicargo police categorically deny that.
// The Chicago Police Department said it was informed shortly before 6:30 p.m. that the Trump campaign had canceled the event, an announcement that took the department by surprise, according to the police chief.
The department "had no role, we were not consulted or provided an opinion" about whether or not to cancel the event, John J. Escalante, the interim police superintendent, said at a news briefing Friday night. A department spokesman said that police did not issue any public safety threats or safety risks before the cancellation. //