Sombre EU bids farewell and signs off Brexit deal
By Alex Barker and Mehreen Khan in Brussels 
More than two years on from the UK’s Brexit referendum, Theresa May and other EU leaders sat side by side on Sunday to approve a historic exit treaty, knowing full well it might be pronounced dead in Westminster in just two weeks’ time.
Sober, disciplined and — for Brussels — unimaginably short, this summit of the EU’s top table was unlike anything before in the 60 years of the European project, with implications that outlast even a negative vote in the British parliament.