Conway, who frequently rebukes Trump on Twitter, shot back Sunday morning, writing, “You’re not ‘presidential’ at all, period. You’re mentally unwell. You engage in bizarre, irrational, self-defeating behavior, which prompts criticism of you, which triggers more bizarre, irrational, self-defeating behavior. You would have been fired from any other job by now.”

He likened Trump to the head of a publicly held corporation and asked whether board members of that company would abide a CEO who behaved in the same manner as this president.

“And if anyone has any doubt about the question, ask yourself this: If, say, a CEO of a major publicly-held company engaged in conduct remotely similar to what we’ve seen of Donald J. Trump over the past 2-1/2 years, what would happen? How long would she or he last in the job?” Conway tweeted Sunday morning.

He continued, “At a minimum, the board of directors would demand that the CEO undergo rigorous psychological examination. But they’d probably just get a new CEO.”