Elon Musk and the Department of Transportation’s plan to “remake” U.S. airspace with rapid safety upgrades has raised new concerns that the billionaire’s involvement poses a “clear conflict of interest,” given his position at SpaceX. 

Sen. Maria Cantwell (D-WA), the ranking member of the Commerce Committee sent a letter to Transportation Secretary Sean Duffy asking him to bar Musk from any effort to reform air traffic control.