Asked by CNN's Jake Tapper whether he thinks his son would pull the trigger on a presidential campaign, Paul said he thought his libertarian-leaning son would make up his own mind.
"I think he probably will. I mean, he's been on TV hinting that he very well might," the elder Paul said on "Erin Burnett OutFront." "I kiddingly say the only advice I give him, he better be very careful. He's doing well, he might get elected, and that's a great burden and a major responsibility. But I think he's doing quite well."