Elon Musk's net worth has declined since Donald Trump took office, primarily due to the impact of new tariffs on his companies.

Donald Trump bungled Elon Musk’s name once again on Monday. The president accidentally referred to the tech billionaire as “Leon.” Fox News aired the gaffe. It came as Trump signed an executive order to create a sovereign wealth fund and as he fielded a question on why Musk (who is leading the non-official Department of Government Efficiency’s drive to cut public spending) should have access to Treasury Department payment systems.

Elon Musk and President Donald Trump, publicly at least, are on good terms. Yet when it comes to the staff in and around the new administration, it’s a different story. Just two-and-a-half weeks into Trump’s second term in office,