U.S. District Judge Charles Alsup had sought to have the acting head of the Office of Personnel Management (OPM), Charles Ezell, testify on Thursday about the mass firing of probationary employees.

The once-obscure Office of Personnel Management, essentially the human resources department of the federal government, is now ground zero for Elon Musk and President Donald Trump’s efforts to ...

OPM also instructed multiple HR departments that failure to reply to the email did not mean automatic termination — despite the Tesla and Space X boss’ warning to the contrary. Officials at ...