Joe Biden Tells Donald Trump to 'Grow Up, Time to Be an Adult'

U.S. Vice President Joe Biden has told President-elect Donald Trump to "grow up" and "be an adult" during a television interview Thursday.

Biden, who has previously criticized the incoming president, told PBS NewsHour host Judy Woodruff that Trump's attacks on the U.S. intelligence community were "absolutely mindless."

"Grow up, Donald. Grow up. Time to be an adult. You're president," Biden said. "You got to do something. Show us what you have."

He added: "It's going to be much clearer what he's for and against and what we're for and against now that it's going to get down to actually discussing in detail these issues that affect people's lives."

Trump is due to be briefed on allegations that Russia interfered in the 2016 U.S. presidential election on Friday. He has questioned how intelligence agencies were even confident of such a hack:

"Not to be prepared to listen to the myriad of intelligence agencies… is mindless," Biden said. "The idea of saying that you know more than the intelligence community knows, is a little like saying you know more about physics than your professor, and you haven't read the book. It's worse."

Joe Biden Tells Donald Trump to 'Grow Up, Time to Be an Adult' | U.S.