India, May 13 -- President Donald Trump made a strange speech during his address to world's business elites at the Saudi-US Investment Forum, in Riyadh, asking Saudi Crown Prince Mohammed bin Salman if he sleeps at night.

Trump's first foreign trip of his second term is being hosted by the de facto ruler of Saudi Arabia, who was charged with orchestrating the brutal assassination of Washington Post columnist Jamal Khashoggi within the Saudi embassy in Istanbul almost seven years ago.

After claiming that Riyadh had evolved into a significant global business hub, Trump received a standing ovation before posing the question, "Mohammed, do you sleep at night? How do you sleep?"

"Critics doubted it was possible, what you've done," the US Pr...