President Donald Trump's threat to cancel Elon Musk's government contracts would have far-reaching implications, experts said.

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.

The U.S. government relies on SpaceX to support NASA and other agencies, and the company has received more $20 billion in federal contracts for it. As Musk and Trump threaten to cut ties, here’s what that would mean for the U.