Friday on CNN after news broke that Republican presidential candidate Donald Trump had to cancel his campaign rally in Chicago because of security concerns, several fights broke out among protesters and Trump supporters.

Reporter Jim Acosta said, “There was a decent amount of police officers here earlier on and private security people here earlier on. They were in a number that was able to keep the peace when it comes to a few protests here and there. There is not enough people in terms of security posture that can handle what we’re seeing right now. There are literally hundreds of protesters behind me. They’re obviously very excited because this rally was just cancelled here, but at the same time, as David was just saying, as you guys were just talking about, these rallies have been building up to this point. We have seen rallies erupt into chaos on a very small scale, but we’ve not seen anything like this.”