Sergio Gor has been blamed in part for the explosive breakdown in the alliance between Trump and his former “First Buddy.”

Elon Musk publicly ripped into a top White House aide who fueled his falling out with Donald Trump.

Tensions had already been building between Musk and Trump before the SpaceX chief left the White House. Things got ugly, however, after Sergio Gor, the director of the presidential personnel office, encouraged Trump to rescind his nomination for Jared Isaacman—Musk’s personal friend—to lead NASA.

The New York Post revealed this week that even though Gor is in charge of vetting thousands of executive branch employees, he himself hasn’t been fully vetted. Five months into the second Trump administration, he hasn’t even submitted the paperwork for his own permanent security clearance.

“He’s a snake,” Musk wrote on his social media platform X late Wednesday in response to the Post’s report.