Trump said: "I just feel like a young man. I'm so young. I can't believe it. ... I'm a young vibrant man." Then he smiled and said he's not sure about Democratic presidential contender Biden, the second-oldest contender in the race behind Bernie Sanders.
Trump said: "I look at Joe. I don't know about him." Biden, in an interview on ABC's "The View," joked in response that if Trump "looks young and vibrant compared to me, I should probably go home."