Theresa May refused to outline a Plan B as she told how rejecting her deal risks halting Brexit altogether.

Speaking in a pottery factory in Stroke on Trent, May warned that voting down her deal would “risk there being no Brexit”.

It comes after No 10 released letters from the EU offering reassurances over the backstop, but insisting that the withdrawal agreement would not be renegotiated.

Read more: Theresa May accused of 'utter hypocrisy' over her defending democracy speech

Mrs May said the letter from the EU contained "valuable new clarifications and assurances to put before the House of Commons, including on getting our future relationship in place rapidly so the backstop should never need to be used".

The Herald:

She added: "We now have a commitment from the EU that work on our new relationship can begin as soon as possible after the signing of the withdrawal agreement in advance of March 29, and we have an explicit commitment that this new relationship does not need to replicate the backstop in any respect whatsoever."

Asked if she believed that the deal could pass through the Commons tomorrow, the Prime Minister said: "I've been speaking to MPs over the weekend and I'll be back in Parliament today and tomorrow.

"I have seen MPs when I've spoken to them recognising the importance of the deal and saying they will vote for it when in the past they had some doubts about it."

Her speech comes ahead of a Commons vote tomorrow, when MPs will decide whether or not to back the Prime Minister's withdrawal agreement.

It also follows reports of a plot to change Commons rules to enable backbench motions to take precedence over Government business if Mrs May's deal falls - which could threaten Brexit legislation and the Government's ability to govern.

Elsewhere Labour leader Jeremy Corbyn warned the Prime Minister that he would trigger a vote of no confidence in her Government "soon", as he hinted that Article 50 may have to be extended if his party came into power.