they have to agree a new Brexit date this coming Thursday or else.
This is an important read for anyone who wants to understand just how complex the legal challenges - not just the political ones - are for the UK government in coming days.
Process to change Brexit "exit day" under UK law must start on Monday 25 at the very latest. But Theresa May appears not to be working to that timetable. Net-net, we could end up with no deal by accident because the necessary processes can't be completed.