Republican presidential front-runner Donald TrumpDonald John TrumpHouse Republicans move to block Yemen war-powers votes for rest of Congress Trump says he's considering 10 to 12 contenders for chief of staff Michael Flynn asks judge to spare him from jail time MORE on Sunday defended his comments that a man who tried to rush the stage during a rally on Saturday had ties to ISIS, saying all he knew about it came from what he saw on the Internet.

"Now, I don't know. What do I know about it? All I know is what's on the Internet," Trump said on NBC's "Meet the Press" on Sunday.


Trump tweeted on Saturday that the "USSS did an excellent job stopping the maniac running to the stage. He has ties to ISIS. Should be in jail!" 

Trump said on Sunday that he shared the video of the man who attempted to rush the stage "dragging the American flag on the ground."

"He was playing Arabic music; he was dragging the flag along the ground; and he had Internet chatter with ISIS and about ISIS," Trump said.

"So I don't know if he was or not. But all we did was put out what he had on his Internet. He's dragging the flag, the American flag, which I respect."

Host Chuck Todd said on Sunday that the video "turned out to be a hoax" and asked Trump if he went over the top with his accusation.

"Somebody made that up," Todd said.

But Trump defended himself, saying the man in the video looked like the same man who had rushed the stage during the rally.

"He was dragging the American flag on the ground like it was a piece of garbage, OK? I don't like that," he said.

"I don't like to see a man dragging the American flag along the ground in a mocking fashion."