Donald Trump actually said...

"If there’s any protester that wants to come out, they will be met with very big force."

"That’s why I’m here instead of somebody else. Actually, it’s the biggest reason."

"If they spit, we will hit, and I promise you they will be hit harder than they have ever been hit before."

"I'd do it if I were Tom. Gavin likes the publicity, but I think it would be a great thing."