Stephen Gardner, the CEO of Amtrak, has abruptly resigned following increasing pressure from the White House and discussions around the potential privatization of the passenger railroad service by Elon Musk. This move comes amid threats of funding cuts from the Trump administration and a growing push for privatization, which Musk has criticized Amtrak for lacking in efficiency. The resignation has raised concerns about the future of U.S. passenger rail services and the ongoing debates regarding their funding and management. The board expressed its intention to work closely with the administration moving forward.