FREE now and never miss the top politics stories again. SUBSCRIBE Invalid email Sign up fornow and never miss the top politics stories again. We will use your email address only for sending you newsletters. Please see our Privacy Notice for details of your data protection rights.

The Prime Minister insisted the agreement would allow Britain to “take back control of our borders, our laws and our money”. But the proposals left many of her MPs incensed and plunged her premiership into fresh jeopardy. The DUP ramped up pressure on the PM with warnings the party, which provides crucial parliamentary support for her government, is poised to vote against the plan.

Former Brexit Secretary David Davis issued a stark warning about the impact the deal would have. He said: “This deal would be a betrayal of the referendum result and have irreversible consequences for years to come.” Conservative Peter Bone warned the Prime Minister she faces losing the support of many Tory MPs and voters. Tackling her directly during Prime Minister’s questions in the Commons, he said: "If the media reports about the EU agreement are in any way accurate you will not be delivering the Brexit people voted for and today you will lose the support of many Conservative MPs and millions of voters across the country."

Tories today branded Theresa May’s Brexit deal a dangerous betrayal

Senior Conservatives including Boris Johnson and Jacob Rees-Mogg urged ministers to reject the proposed agreement, which they fear could lock Britain in the EU's customs union indefinitely, blocking its ability to strike new trade deals elsewhere. Mark Francois, deputy chairman of the Brexiteer European Research Group (ERG), said the deal "is not Brexit, that is not what 17.4 million people in this country voted for". He said a number of Cabinet ministers opposed the plans “deep down very much”. Scotland Secretary David Mundell made clear he had concerns about the direction Brexit could take.

Mark Francois, deputy chairman of the Brexiteer European Research Group (ERG)

He was among the 13 MPs the Conservatives have north of the border to sign a joint letter warning the Prime Minister they could not support a deal that failed to restore "complete control and full sovereignty" over the UK's fishing waters. They said: "We could not support an agreement with the EU that would prevent the UK from independently negotiating access and quota shares... We also cannot stay in the Common Fisheries Policy after December 2020." Conservative Andrew Bridgen insisted the exit agreement was a “danger” to the country and said he expected a leadership challenge “imminently”. “I’m deeply unhappy,” he said. "These proposals, if implemented, are a danger to the government, the Conservative party, our country and our democracy.

A man holding a 'Leave Means Leave sign'

“I do honestly think that dissatisfaction is so high that I wouldn’t be surprised if there was an imminent vote of confidence in the Prime Minister.” Protesters from the Leave Means Leave campaign gathered outside Downing Street calling for the government to "ditch the deal". Its co-chairman, John Longworth, a former head of the British Chamber of Commerce, said Mrs May’s plan was the “worst deal in history”. “It doesn’t fulfil the Brexit vote in 2016 and it will effectively hamper any of the benefits of Brexit flowing to the economy and will make Britain an effective colony,” he said.

Pro-Brexit supporters demonstrate in Whitehall today

After the general election, the DUP signed up to a pact agreeing to support Mrs May’s government in a series of areas, including legislation that delivers Brexit. But the party has been left dismayed by the way the exit deal has developed and fear it puts the future of the Union at risk. Its MPs are likely to have a crucial role in whether the PM’s plans make it through Parliament but will only give it their support if significant changes are secured. DUP leader Arlene Foster said she would not back a deal that left Northern Ireland "adrift in the future" and warned there would be "consequences" for Mrs May if she put forward proposals that threatened to break up the United Kingdom.

PM Theresa May leaves 10 Downing Street to secure the backing of her Brexit deal by MPs

"Of course there will be consequences,” she said. “We could not as Unionists support a deal that broke up the United Kingdom." Former Ukip leader Nigel Farage said the draft Brexit plan left Britain handing over cash as part of the divorce settlement while failing to secure anything in return. "We're giving away in excess of £40 billion in return for precisely nothing,” he told ITV's Good Morning Britain. “Trapped still inside the European Union's rule book, continuing free movement of people, continuing with a foreign court having a say over our own country. Nothing has been achieved other than giving away a huge sum of money."

Former UKIP leader Nigel Farage