After a weekend of violence at his rallies, Donald Trump arrived in Florida for a rally in Boca Raton on Sunday night, crowing at “how well we handled” those confrontations, because “nobody got hurt,” apparently meaning nobody got killed. Standing in an open-air amphitheater filled with thousands of supporters and surrounded by scores of police officers, this season’s version of George Wallace coyly asked, “Do we have a protester, anyone?” and “Is there a disrupter in the house?”

This is the new measure of Mr. Trump’s vile presidential campaign: stand behind a security cordon, stir up racially charged viciousness and attacks, then talk about how it symbolizes “love” from people who “want to see America be made great again.”

After violence erupted at his rallies in North Carolina, Chicago and Ohio in recent days, Mr. Trump has offered only defiance and further incitement. “I love you,” he said over and over on Sunday in Florida. “We have a massive situation going on.”

Earlier on Sunday, in the same wink-wink manner with which he had “disavowed” the Ku Klux Klan, Mr. Trump said on NBC’s “Meet the Press” that he doesn’t condone violence, even as he justified and encouraged it. He defended the supporter who punched a young protester in the face in North Carolina last week and who said afterward that maybe he’d have to “kill him” next time, saying, “He obviously loves this country and maybe he doesn’t like seeing what’s happening to the country.”