A judge temporarily blocked President Donald Trump’s buyout offer to federal civilian employees from taking effect Thursday, hours before the deadline the administration set for more than 2 million employees to decide whether to take resignation packages with pay through September.

President Donald Trump is facing legal hurdles in his efforts to shrink the federal government. The latest coming from a federal judge who is pausing the implementation of the White House’s buyout offer to all federal workers until Monday after employee unions filed suit arguing it violates federal law.

The judge could opt to delay the buyout further or block it on a more permanent basis when he next considers the legal challenge by the unions at a hearing on Monday.