"Yeah," Scaramucci said catching the lad. "[Trump] is a disruptive risk-taker, he's willing to break the usual bonds ... because he knows that if he goes to a meeting like this, he increases the chance of peace and prosperity."

But the daughter of the US ambassador to Russia Jon Huntsman later apologised on air for what she had said. Her gaffe still took off on Twitter where the hashtag #TwoDictators started trending immediately.

The two leaders arrived in Singapore on Sunday for their talks, which initially were billed as an effort to rid North Korea of its nuclear weapons.