National Security Agency Director Michael Hayden

National Security Agency Director Michael Hayden on MSNBC’s talks Trump on “Morning Joe”

*Republican presidential nominee Donald Trump doesn’t understand why the U.S. isn’t making good use of its nuclear weapons, according to an unnamed advisor to the GOP presidential candidate cited by “Morning Joe” host Joe Scarborough.

The conservative was interviewing former National Security Agency Director Michael Hayden on Tuesday when he said, “Several months ago, a foreign policy expert on the international level went to advise Donald Trump. And three times he asked about the use of nuclear weapons. Three times he asked at one point if we had them why can’t we use them.”

“Be careful, America — and be careful, Republican leaders,” Scarborough’s co-host, Mika Brzezinski, said to the camera.

During the interview, Hayden said he was concerned about Trump becoming president — which comes with access to the nuclear codes — because he’s too “erratic” in his behavior.

Watch below: