So what will happen next?
THE FIRST VOTE The PM holds the so-called Commons “meaningful vote” on her Brexit deal on December 11. And it really is D-Day for the PM. IF SHE WINS the UK leaves the EU on March 29 next year as planned, and she stays on as Prime Minister until 2022. IF SHE LOSES Labour tables a vote of no confidence in the Tory Government. Mrs May has 14 days to win a second confidence vote if she loses the first one.
If she fails to win then a General Election should follow 21 days later. But as that clashes with Christmas it would be held in January.
But Jeremy Corbyn could win a confidence vote of his own and become PM – see Nigel Nelson, Page 14.
THE SECOND VOTE If Mrs May does not quit, get thrown out or get forced into a General Election in round one, she may cling on for a second vote.
This would involve coming back to Parliament with a better deal from Brussels, or as an emergency measure in the certainty of the pound crashing. IF SHE WINS the UK leaves the EU on March 29 as planned and she stays on as Prime Minister until 2022. IF SHE LOSES this one she would surely resign rather than face another round of confidence votes.
Chancellor Philip Hammond would become interim Prime Minister while the Tories hold a leadership contest.
Mr Corbyn could win a confidence vote of his own and become Prime Minister instead.