America's former top spy also gave anchor Nicolle Wallace his intelligence assessment of Trump's White House.
Brennan wondered about Trump's state-of-mind during a conversation about special counsel Robert Mueller and Democrats winning the House of Representatives in the midterm elections.
"I wonder whether or not what we've seen over the last couple days -- both in France as well as here in the United States -- that Mr. Trump is brooding and sulking, and really concerned and quite anxious," Brennan noted. "Who knows what's going on behind-the-scenes and whether or not he's withdrawing because of the result of the pressure that he's feeling -- which is dangerous for someone who holds the office of the presidency to feel that they are under assault from the Department of Justice."
"You've been warning, really since the early months of the Trump presidency, about potential repercussions around the world of his style of leadership or abdication of it," Wallace noted. "Do you think we're seeing some of those repercussions around the world, the rebuke of nationalism from [Emanuel] Macron and others?"
"Yes, I think what Macron, [Justin] Trudeau, and others are saying publicly -- which is in direct contradiction to some of the things Mr. Trump has said about nationalism -- it demonstrates our allies and partners around the world may, in fact, sense that the time is now to stand up to Mr. Trump," Brennan replied. "Maybe they're also detecting that his political footing is corroding and now's the time to actually change tack on this, because they don't have to worry about him over the longer term."
"Can I just ask you one last question?" Wallace wondered. "If you were offering an intelligence assessment of the American president for another country, how would you describe him?"
"I would say this is, even in an administration that has been so beset by problems, this is the most unsettled moment," he replied. "Because a number of things have come together. The Democrats are now in control of the House, they are going to be able to have real investigative powers. You have a lot of people who are maybe leaving the administration, the attorney general has been sacked, and you have the Mueller investigation that's coming to fruition."
"It's the confluence of factors together, I would say to a foreign leader, America is now going through a real rough patch and I'm hoping that, you know, the Secretaries of State and Defense and others are going to keep it on a strong track, but I must tell you that the President of the United States is having some real issues to deal with and it may manifest itself on the global stage in some unsettling ways," Brennan concluded.
"Scary stuff," Wallace noted.
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