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.

At a signing ceremony in the Oval Office on Feb. 3, President Trump said that Elon Musk "won't do anything" without his administration's approval.