Theresa May will bring key legislation to ratify her Brexit deal before the Commons within weeks, in a last-ditch effort to break the deadlock.
Downing Street said she would bring forward the Withdrawal Agreement Bill (WAB) in the week beginning 3 June, after late night talks between Ms May and Jeremy Corbyn on Tuesday.
But Labour expressed doubts about Ms May's efforts to deliver a compromise agreement, with sources insisting that there was no guarantee they would support the bill.
Meanwhile, Ms May faced calls to resign from Tory MP Peter Bone during prime minister's questions, saying she had lost the confidence of activists.
He said: "They say that her deal is worse than staying in the EU, that they want us to come out now on a no-deal basis, and third, more importantly, they've lost confidence in the prime minister and wish her to resign before the European elections.
"Prime minister, what message do you have to say to these loyal and dedicated Conservatives?"
But Ms May said she thanked all party supporters for their work campaigning and fundraising, and said to those "concerned about delivering Brexit" her government "wants to deliver Brexit and has been working to deliver Brexit".
This liveblog has now closed, but see our live coverage from Wednesday below

May reveals plan for Commons vote on key Brexit legislation after late-night talks with Corbyn
Bill will be brought forward in week beginning 3 June - the same week the US president Donald Trump is to visit the UK on an official state visit"We will therefore be bringing forward the Withdrawal Agreement Bill in the week beginning the 3 June.
"It is imperative we do so then if the UK is to leave the EU before the summer parliamentary recess.
"Talks this evening between the Prime Minister and the Leader of the Opposition were both useful and constructive.
"Tomorrow talks will continue at an official level as we seek the stable majority in Parliament that will ensure the safe passage of the Withdrawal Agreement Bill and the UK's swift exit from the EU."
"In particular he raised doubts over the credibility of government commitments following statements by Conservative MPs and Cabinet ministers seeking to replace the prime minister.
"Jeremy Corbyn made clear the need for further movement from the government, including on entrenchment of any commitments.
"The prime minister's team agreed to bring back documentation and further proposals tomorrow."
It is understood Mr Corbyn rejected any suggestion Labour would support the Withdrawal Agreement Bill without agreement.
He said: "The prime minister has not pursued the one option that has ever achieved a positive vote for something in parliament. Alternative arrangements to the backstop won easily whilst everything else has failed.
"For the Bill to have any prospect of success then there must be real change to protect the economic and constitutional integrity of the United Kingdom and deliver Brexit."

Jeremy Hunt appears to struggle when asked why people should vote Tory
'[Vote] because you believe in Conservative policies,’ foreign secretary saysOwen Paterson said he was concerned her deal would leave Britain following EU laws. He said the Democratic Unionist Party, which props up the government, is concerned it will align Northern Ireland more closely with the EU than the rest of the UK.
"Sadly, we will vote against it again, as the DUP put out a statement, because it doesn't change the essential nature of the withdrawal agreement, which is unacceptable we will have laws imposed on us by 27 different countries where we are not involved," Mr Paterson told the BBC.
"And very importantly for the DUP and us it potentially breaks up the United Kingdom by creating a new entity called UK and I and that means you could end with Scotland wanting to follow and that is really dangerous for the union."

Theresa May facing near-certain defeat in final Brexit gamble as Tory rebels and DUP vow to vote down bill
Brexiteer Conservatives and Northern Ireland Unionists combine to insist withdrawal agreement bill remains 'unacceptable'She said the European election next week is a chance for her colleagues to campaign for Conservative values and beliefs.
The Cabinet minister said: "Extremism is coming up to us from the left and from the right and we need to make sure that we fill the middle.
"And we fill it not just with what people sometimes call moderation - we fill it with our ideas, our thoughts and our own Conservative momentum of what we think we can change and what we can do because if we leave that vacuum there will be consequences."
"We have to call it out, we have to do something about it," she told the audience of Cabinet ministers, MPs and journalists at an art gallery in central London.
"I think one of the things we have to do is be bold about calling it out and it's not easy to do it because as soon as you do you get a whole range of abuse.
"It's much easier to keep your head down on this but it's wrong to do so and the clearest example of that I feel is the Euro elections which are coming up and a lot of people are saying, even Conservatives are saying, 'I want nothing to do with it, I'm going to stay out of it'.
"I think that we have to stop that. We have to make sure that we fill that vacuum.
"We have to go out and campaign for Conservative values and Conservative beliefs because if we don't we leave that vacuum and extremist parties will continue to fill it."
David Macdonald, an independent councillor from East Renfrewshire, said after a "great deal of reflection on the political landscape we are facing in Scotland at present, I have come to the point where I have realised I must do what is best for the future of this country before anything else".

Change UK election candidate defects to the Liberal Democrats
One of Change UK's lead European election candidates has quit to back the Liberal Democrats over concerns the new party could split the Remain vote in the upcoming contest
Brexit could push UK companies into 'greater contact with corrupt markets'
National Crime Agency sends secret report detailing 'countries of concern' to government
Liam Fox claims UK could accept chlorinated chicken in US trade deal without lowering food standards
The UK could accept chlorinated chicken in a post-Brexit trade deal with the US without cutting food standards, Liam Fox has claimed.
The international trade secretary vowed to protect food quality after withdrawal from the EU – but insisted the controversy about washing poultry in chlorine was purely an “animal welfare” issue.
Dr Fox also suggested it would be impossible, under World Trade Organisation(WTO) rules, for Britain to ban the practice as part of a trade agreement with Donald Trump.
A former minister has quit Labour with a furious attack on Jeremy Corbyn, warning the party has been “destroyed” under his leadership, writes Rob Merrick.
Bridget Prentice accused Mr Corbyn of failing to stand up to antisemitic “bigots and bullies” and of “complete ignorance” about the damage to come from Brexit.
“In all the major issues of the day, you have called it wrong,” the former justice minister wrote, in her resignation letter to Labour’s general secretary.
"The probe found the ultra-wealthy donors coughed up a combined total of £2.9million since the start of the 2017 general election campaign. It shows how Theresa May’s party relies on rich financiers for donations."


Jeremy Corbyn pledges to extend Labour's £10 per hour minimum wage to under 18s
t'It will be nothing less than life changing,' Labour leader said in Birmingham
