CBS aired a segment of Obama’s Friday morning interview — the entire interview will air on Sunday — which opened with POTUS noting that Trump was one of the most “unconventional” candidates in U.S. history.

President Barack Obama told CBS’ Steve Kroft that Donald Trump must resist the urge to be “improvisational” in the Oval Office.

“I don’t think there’s anybody who’s run a campaign like his successfully in modern history, not that I can think of,” Obama added. “As a consequence… he didn’t have the supports of many of the establishment in his own party because, you know, he ran sort of an improvisational campaign.”

“Can you run an improvisational presidency?” Kroft asked the President as a followup.

“I don’t think so,” Obama responded. “Now he’s in the process of building up an organization, and we’ll have to see how that works.”

“It’ll be a test, I think, for him and the people that he’s designated to be able to execute on his vision.”