The White House says it plans to fight a ruling by a federal judge ordering the administration to immediately reinstate thousands of probationary federal workers fired amid President Donald Trump‘s efforts to shrink the government’s workforce and budget.

William Alsup, the Senior U.S. District Judge of the Northern District of California, ruled Thursday that the Departments of Agriculture, Defense, Energy, Interior, Treasury, and Veterans Affairs must extend offers to fired employees to return to their previous positions.