On Friday, U.S. District Judge James Robart in Seattle entered a temporary restraining order blocking President Donald Trump’s executive order and setting up an accelerated appellate showdown over the sudden suspension of immigration from seven predominantly Muslim nations.

The U.S. Court of Appeals for the Ninth Circuit denied the government’s request for an immediate stay and set an expedited briefing schedule. Lawyers representing the states of Washington and Minnesota, which are challenging the ban, must respond during predawn hours on Monday and the Justice Department must file its reply Monday evening.