Speaking on NBC's Meet the Press Sunday morning, presidential front-runner Donald Trump told host Chuck Todd that he doesn't accept responsibility for violence at his rallies.

He repeatedly said he "doesn't condone violence," while indicating that he might cover the legal fees of a supporter of his who punched a protester in the face.

Todd played clips of Trump speaking to crowds and expressing support for violent actions.

"I love the old days, you know what they used to do to guys like that when they were in a place like this? They'd be carried out in a stretcher, folks," Trump had said of one protester. Then: "I'd like to punch him in the face, I'll tell you."

After Todd played that clip, Trump said that he did not condone violence, and does not accept responsibility for any atmosphere of violence at his rallies.

At an earlier rally, Trump had said to his supporters: "If you see somebody getting ready to throw a tomato, knock the crap out of them, would you? Seriously. Okay? Just knock the hell — I promise you, I will pay for the legal fees."

Trump told Todd that then, too, he was not condoning violence.

He repeatedly brought up the idea of self-defense.

As an example, explaining why he called on supporters to "knock the crap" out of anyone with tomatoes, he said: "If you get hit in the face with a tomato, let me tell you, with somebody with a strong arm at least, let me tell you, it can be very damaging.

"If people are there doing harm, you have to go and you have to use equal force."

He also said that the young man who was sucker-punched in North Carolina had been "taunting," "loud" and "disruptive," and was holding up his middle finger — "a terrible thing to do."

The man who punched him, Trump said, "got carried away, he was 78 years old, he obviously loves this country, and maybe he doesn't like seeing what's happening to the country."

Trump, who insisted yet again he does not condone violence, had instructed his people to "look into" the possibility of paying the man's legal bills, he said.

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