MSNBC's 'Morning Joe' host, former Republican congressman Joe Scarborough, recalled an incident live on air in which he claimed "several months ago, a foreign policy expert went to advise Donald Trump and three times he asked about the use of nuclear weapons."

Scarborough made the comment in a discussion about why Donald Trump does not have any foreign policy experts advising him. Former CIA Director Micheal Hayden was asked who in the intelligence community is advising Trump, to which Hayden responded, 'no one.'

Scarborough added he was told that Trump specifically asked, "'If we have nuclear weapons, why can't we use them?'" Scarborough's co-host, Mika Brzezinski ended the segment, in which the other panelists appeared genuinely shocked, saying "Be careful America, and be careful Republican leaders, your party blowing up."

Retired Air Force General and former heard of the NSA, Michael Hayden, appeared on MSNBC’s Morning Joe on Wednesday morning to discuss the election. And to discuss the topic that’s on everyone’s mind—namely is Donald Trump out of his mind.

Scarborough: What concerns you most about Donald Trump?

Hayden: How erratic he is. I can argue about this position of that position—I do that with the current president. But he’s inconsistent. And when you’re the head of a global superpower, inconsistency, unpredictability, those are dangerous things. They frighten your friends and they tempt your enemies.

Harold Ford: General Hayden, who among your piers do you know who’s advising Mr. Trump?

Hayden: No one.

Trump is blathering on about military matters from Africa to the Middle East to Eastern Europe to Asia, but he’s not bothering to get any advice from experts. Because he has a ‘good brain.’

But Trump did talk to someone, and the results of that conversation is the biggest boost the fallout shelter industry has gotten since the end of the Cold War.

Scarborough: Several months ago, a foreign policy expert went to advise Mr. Trump. … Trump asked three times, in an hour briefing, ‘why can’t we use nuclear weapons?’

Mika Brzezinski: Be careful, America, and be careful Republican leaders. Your party is blowing up.

Scarborough: I want to ask … and it may be classified, but the steps. Donald Trump decides to use a nuclear weapon. What is the time frame between his decision and when the nuclear weapons are launched?

Hayden: Joe … the system is designed for speed and decisiveness, it’s not designed to debate the decision.

The nuclear keys are just that. If you have them, you’re driving the system. There’s no check on the president’s authority to launch. Donald Trump—whose primary concern in a security briefing is “if we have nuclear weapons, why can’t we use them” could use them. Without restriction. Without recall.