President Donald Trump was livid after he learned that Pete Hegseth had invited Elon Musk for an exclusive briefing at the Pentagon, according to a new report in The Atlantic. The meeting made headlines in March when The New York Times reported that the defense secretary would brief Musk on plans for a potential war with China—where the world’s richest man conducts significant business.

President Donald Trump was reportedly furious upon learning that Defense Secretary Pete Hegseth had invited tech billionaire Elon Musk — a recent Trump ally with whom he had a public falling-out this week — to a Pentagon briefing.

President Trump and Elon Musk's rift exploded into public view on Thursday over what started out as differences on the president's megabill.