The president could tighten federal oversight of the tech titan’s businesses, even if heavy reliance by the Pentagon and NASA on them makes terminating Mr. Musk’s contracts less feasible.

President Trump is threatening to cut government contracts for Elon Musk's companies amid their feud. SpaceX and Starlink have received billions from the federal government. New York Times Investigative Reporter Eric Lipton joins Katy Tur to explain why it's "not really possible" for Trump to do this.

The broken alliance between the president and the world's richest man could threaten Musk's lucrative pending – and future – federal subsidies.