On March 8, 2016, Sanders won the Michigan Democratic primary. Political experts and news networks called it an upset victory. Polls showed Clinton winning by many numbers. On March 11, 2016, a mass protest over a planned Trump rally at the University of Illinois at Chicago caused hundreds to clash and four people were injured. In the aftermath, Trump accused of Sanders and his supporters of creating the protest to purposely cancel the Trump rally. Sanders later called out Trump as a "pathological liar" who leads a "vicious movement", and said that "while I appreciate that we had supporters at Trump's rally in Chicago, our campaign did not organize the protests".