"I was ready for him, but it's much easier if the cops do it," he said.
Sanders "should really get up and say to his people, 'stop, stop,' " he said.
Trump touted Mangold as “number one at his position” and a great person.
"When we're one-on-one, there needs to be one-on-one debates."
Cruz accused Trump of creating "an environment that only encourages this sort of nasty discourse."
Trump is speaking to supporters at a campaign rally in Dayton, Ohio.
"Media put out false reports that it was cancelled," he wrote.
Rubio said Trump "clearly has used language that appeals to anger."
Trump decried the “ organized group of people, many of them thugs” who protested his event.
A Donald Trump rally that was scheduled for Friday night in Chicago was indefinitely postponed over security concerns after hundreds gathered outside the UIC pavilion to protest the GOP front-runner's event.
A Trump rally earlier Friday in...