A rift appeared to open Sunday between some of President Donald Trump’s agency heads and Elon Musk, the billionaire tasked with reforming the federal government, over Musk’s demand that all federal employees state their weekly accomplishments or risk termination.

The moves came after a judge ruled on Friday that the Trump administration could proceed with plans to lay off or put on paid leave many agency employees and close down operations overseas, which means forcing employees based abroad to come back to the United States. Some of those employees say they expect to be fired once they return home.