Federal workers are scrambling to make sense of the flurry of decrees issued Monday evening by President Donald Trump, parsing through emails from interim agency heads and skimming reports of lawsuits filed by unions to try to understand whether they have to report to work in person, or if they will soon have a job at all.

President Donald Trump has ordered federal workers to return to the office five days a week and weakened job protections for civil servants, the first salvoes in his campaign to gut the federal bureaucracy.

The National Treasury Employees Union argues a move to “radically reshape the civil service” by making it easier to fire federal workers violates the will of Congress.