“I don’t think our supporters are inciting. What our supporters are doing is responding to a candidate who has, in fact, in many ways, encouraged violence,” Sanders said Saturday at a press conference in Chicago. “When he talks about … ‘I wish we were in the old days when you could punch somebody in the head.’ What do you think that says to his supporters?”

Sanders also referred to an incident earlier this week in which a black protester was sucker-punched by a Trump supporter as he was being led out of a rally.

“So the issue now is Donald Trump has got to be loud and clear and tell his supporters that violence at rallies is not what America is about and to end it,” Sanders said.