The police and military "are better people than what Trump wants them to be," said the MSNBC host.
It ain't the first time, the VP nominee adds.
Police say they only arrested one person on Monday.
Violence continues to plague the GOP presumptive nominee's campaign events.
Police say protesters threw bottles and rocks and fought with Trump fans.
“Listen to the crowd. There’s no violence. It’s a media fabrication,” Republican frontrunner Donald Trump told People magazine
He told CNN people at his events are "very angry" and tired of being misled by politicians.
"I wouldn’t lead it, but I think bad things would happen."
CNN debate moderators didn't raise the issue, so Trump went on offense.
They lack the courage to criticize him -- even for encouraging assault.