Presidential candidates are weighing in on this week's protests and resignations at the University of Missouri:

Donald Trump told Fox, of the resignations, "I think it's disgusting. I think the two people that resigned are weak, ineffective people. … I think that when they resigned, they set something in motion that's going to be a disaster for the next long period of time."

On another Fox show, Ben Carson said Missouri students were engaged in "infantile behavior," adding that "we're being a little bit too tolerant, I guess you might say, accepting infantile behavior. I don't care which side it comes from. To say that I have the right to violate your civil rights because you're offending me is un-American."

Bernie Sanders and Hillary Clinton made their remarks on Twitter, with Clinton retweeting the comments of an aide.

I'm listening to the #BlackOnCampus conversation. It's time to address structural racism on college campuses. — Bernie Sanders (@BernieSanders) November 12, 2015