Theresa May has claimed her Brexit blueprint is “the only deal available” after she travelled to Europe in a desperate scramble to win concessions from EU leaders.
The prime minister was forced to shelve Tuesday's crunch vote on the withdrawal agreement in the face of near-certain defeat by Tory rebels, embarking instead on a whistle-stop diplomatic tour of European capitals.
It comes as Tory rebels renewed a push to overthrow her, with some members of the European Research Group claiming more letters calling for her resignation have been submitted.
Meanwhile, Downing Street said the delayed vote would take place by 21 January, though insiders hope it could be before depending on what happens in Brussels.
To follow events as they unfolded, see our live coverage below

Anger as May refuses to set new date for MPs' vote on her Brexit deal
Theresa May has sparked anger across the Commons by refusing to say when MPs will vote on her Brexit deal, as she prepared to head to Brussels to plead with EU leaders for further concessions.
The showdown was dramatically delayed, almost certainly until the new year, after the prime minister admitted a Tory revolt meant she was heading for a crushing defeat “by a significant margin”.
But condemnation of Ms May for pulling back rose when Downing Street failed to set a new timetable for the vote, arguing it depended on when she could “get the assurances” from the EU to pass the deal.

EU president Donald Tusk rules out renegotiating deal and calls emergency Brexit meeting
The president of the European Council has ruled out renegotiating Theresa May’s Brexit deal and its controversial "backstop" at a scheduled summit in Brussels later this week.
Donald Tusk said leaders would discuss the agreement struck last month at a forthcoming meeting and that leaders were “ready to discuss how to facilitate UK ratification”.
But he warned that the bloc would use the meeting to discuss no-deal planning “as time is running out”.
She told BBC Radio 4's Today programme: "That might include an addendum to the Withdrawal Agreement that sets out that Parliament will vote prior to going into a backstop, should that prove necessary, and potentially that the EU parliament and UK parliament must vote every year thereafter to provide that legitimacy for the UK to stay in the backstop, should that prove necessary.
"So there are plenty of options for the PM to talk to the EU about that don't involve reopening the Withdrawal Agreement, but that would provide the legal text as a part of the Withdrawal Agreement, through perhaps an addendum."

EU president tells Theresa May Brexit deal renegotiation 'will not happen'
There is "no room whatsoever" to renegotiate Theresa May's Brexit deal, the president of the European Commission has said.
Speaking in the European Parliament on Tuesday Jean-Claude Juncker said re-opening the withdrawal agreement "will not happen".
He said the best the prime minister could hope for was "further clarity and further interpretations without reopening the withdrawal agreement" when she meets EU leaders in Brussels this week.
The Prime Minister is desperate to gain more concessions from the EU on the deal she struck last month after it was given an overwhelmingly hostile reception by MPs.
Asked about Ms Sturgeon's criticism of Labour over a second referendum, she added: "What we have said is that our priority is not at this time for a second referendum.
"We want to secure a deal, we respect the result of the referendum."

Andrea Leadsom reveals Theresa May's plan to get her Brexit deal through parliament
Andrea Leadsom has lifted the lid on Theresa May’s demands in her emergency talks with the EU to salvage her Brexit deal, insisting she has “plenty of options”.
The prime minister will seek an “addendum” to the withdrawal agreement, the Commons leader said - giving MPs power over whether to enter the Irish borderbackstop and to pull out of it.
Ms Leadsom suggested the change would be “legally binding”, despite the EU ruling out legal changes and No 10 refusing to say Ms May would make such a demand.

'Hanging by a thread': How the papers covered Theresa May's day of Brexit humiliation
Theresa May’s decision to delay the vote on her Brexit dominate Tuesday's front pages as she travels to Europe in an effort to secure concessions from the EU and save her deal.
The prime minister is referred to as "desperate", "running scared" and "truly stuffed" after pulling a parliamentary vote on the agreement over fears it would be lost by a "significant margin".
Covering a dramatic day in the House of Commons, the front page of the The Independent’s Daily Edition leads with: “Let’s call the whole thing off”.
The letter was signed by Liberal Democrat leader Sir Vince Cable, Green Party MP Caroline Lucas, SNP leader in Westminster Ian Blackford and Plaid Cymru Westminster group Leader Liz Saville Roberts.
They said there was an "overwhelming" case for a confidence vote to take place now and suggested it would pave the way to a second referendum on EU membership.
"We believe a motion of no confidence must be brought forward at the earliest possible opportunity, to ensure there is enough time to pursue another course," they wrote. "Therefore we want to emphasise again that you will have our full support if you put down a motion of no confidence."
But Labour has made clear the best opportunity to challenge Ms May with such a motion would be following a critical defeat on her Brexit bill.
The party said on Monday: “We will put down a motion of no confidence when we judge it most likely to be successful.

Theresa May should resign if she loses no-confidence vote, influential parliamentary committee concludes
Theresa May should resign after losing any vote of no confidence in the Commons and recommend a successor, a committee of MPs has concluded.
Its report clears up confusion about the power of MPs to topple the prime minister by finding that any no confidence vote – even on a non-binding motion – removes the authority to govern.
Ms May would be expected to resign “unless that authority could be restored” in a second vote and recommend a successor to the Queen.

Parliament 'intruder' shot with Taser gun by armed police
SNP Westminster leader Ian Blackford issued the Labour leader with an ultimatum, saying he must act before close of play on Tuesday or other parties will be forced to intervene.
Mr Corbyn is facing growing pressure to put forward a no-confidence motion in the government after the prime minister was forced to pull a vote in her Brexit deal at the eleventh bout to avoid a catastrophic defeat at the hands of her backbenchers.
Speaking at a press conference in central London, Mr Blackford said Britain was facing a “constitutional crisis unparalleled in modern times” and suggested that his party, the Greens, the Liberal Democrat’s and Plaid Cymru could attempt to force a vote in the government if Labour won’t.
Asked by The Independent for more details, he gave Mr Corbyn until the end of the day to act.

David Cameron insists he does not regret calling Brexit referendum
David Cameron has insisted that he does not regret calling the Brexit referendumbut did say he was “concerned” about the current state of British politics.
The former prime minister said he had “made a promise” to the British people to hold a vote on EU membership, so had to keep to his word.
Asked if he regretted his decision to sanction the public vote, he replied: "No, of course not."
He was then asked by the reporter as he was getting into a car a if he should “apologise to the British people”.

Theresa May could delay vote on her Brexit deal for more than a month, Downing Street reveals
Theresa May could delay the critical commons vote on her Brexit deal for more than a month as she tries to squeeze new concessions out of the EU.
Downing Street confirmed the prime minister will bring the deal to a vote by January 21 at latest, though insiders hope it could be before depending on what happens in Brussels.
The prime minister met Dutch PM Mark Rutte on Tuesday morning ahead of other appointments with German chancellor Angela Merkel and European figures Donald Tusk and Jean-Claude Juncker as she begins her push for a way out of her dilemma.
The Independent has launched its #FinalSay campaign to demand that voters are given a voice on the final Brexit deal.
Sign our petition here