British Prime Minister Theresa May has been warned she faces another defeat over her Brexit deal after promising to bring the legislation to write it into law before the House of Commons in the first week of June.
The government confirmed it will bring forward the Withdrawal Agreement Bill, after Mrs May and Labour Party leader Jeremy Corbyn held fresh talks yesterday evening.
But the two leaders have failed so far to agree a Brexit package and Mrs May also faces opposition from her DUP allies unless the Northern Ireland backstop measures are scrapped.
Former Brexit minister Steve Baker questioned her decision to bring the legislation for her "failed deal" before Parliament and suggested it would do little to counter the threat posed by Nigel Farage's Brexit Party.
The deputy chairman of the European Research Group of Brexit-backing Tories said: "If the Brexit Party were demanding we pass this Withdrawal Agreement, a vote might just make sense.
"But they aren't. Quite the reverse.
"And driving it through over the heads of the DUP appears to eradicate the government's majority."
Labour will oppose the bill unless a cross-party deal is reached with the government.
DUP Westminster leader Nigel Dodds questioned "what has changed" from the deal which has already been rejected three times by MPs.
"Unless she can demonstrate something new that addresses the problem of the backstop then it is highly likely her deal will go down to defeat once again," he said.
International Trade Secretary Liam Fox warned Eurosceptics that they risked the prospect of Brexit never happening if they failed to back the legislation.
Failing to support the bill would mean either a no-deal Brexit or the revocation of Article 50, cancelling the whole process, he said.
"There will be an opportunity for MPs to decide, after local and European elections, whether they want to vote for Brexit or not," he told the Institute for Government in London.
"I think MPs will need to look and see whether they want to continue down a path that, inexorably I think, takes us to either the potential of revocation of Article 50 or leaving without a deal, and ask if that's the best course, either democratically or economically."
In their meeting, Mrs May was said to have made clear to the Labour leader that she wanted to bring cross-party discussions to a conclusion and "deliver on the referendum result".
A Downing Street spokesman said the talks between Mrs May and Mr Corbyn were "useful and constructive".
Labour said Mr Corbyn set out opposition’s concerns about the Prime Minister's ability to deliver on any compromise agreement during his talks with Mrs May, given the uncertainty about her leadership.
It is understood that Mr Corbyn rejected any suggestion that Labour would support the Withdrawal Agreement Bill without agreement.
With Mrs May's future linked to the passage of a Brexit deal, getting legislation through the Commons and Lords by the summer break could also pave the way for her departure from Number 10.
She is due to meet senior Tory MPs on the backbench 1922 Committee's executive on Thursday for talks about her future.
The Withdrawal Agreement will go before the Commons in the same week US President Donald Trump is due to make a state visit to the UK.
Mr Trump and his wife Melania will be in the UK from Monday 3 to Wednesday 5 June.
On Thursday 6 June, a by-election will be held in Peterborough to find a replacement for MP Fiona Onasanya, who lost her seat through a recall petition after serving time in prison for lying about a speeding offence.