"The collective decision of cabinet was that the government should agree the draft withdrawal agreement and the outline political declaration", Theresa May said outside her Downing Street residence after a five-hour cabinet meeting. Meanwhile, proponents of closer ties with European Union in her party and the opposition say the deal squanders the advantages of membership for little gain.
U.K. Prime Minister Theresa May was fighting for her political survival on Thursday after a draft Brexit agreement with the European Union sparked resignations from her Cabinet - and left furious opponents from within her own party pushing for a change in leadership.
An anti-Brexit demonstrator holds a placard opposite the Houses of Parliament in London on Nov 13.
May's divided party exposes serious cracks in her leadership, as she attempts to steer the United Kingdom through its biggest shift in policy in more than 40 years.
Two cabinet ministers, and two junior ministers, have resigned over the deal - while some Conservative MPs have attempted to force a leadership contest by writing letters of no confidence in the prime minister.
Although other MPs have already sent letters, all eyes were on Rees-Mogg given his influence over Brexit supporting MPs. "Yes", May told reporters at her Downing Street office. A chorus of other Brexiteers have joined Rees-Mogg in calling for a vote of no-confidence.
Theresa May has urged Cabinet ministers to act in the national interest and support a Brexit deal which takes the United Kingdom "significantly closer" to delivering the result of the referendum.
Main opposition Labour Party leader Jeremy Corbyn said May should withdraw the "half-baked" Brexit deal and that Parliament "cannot and will not accept a false choice between this deal and no deal". "We can choose to leave with no deal, we can risk no Brexit at all, or we can choose to unite and support the best deal that can be negotiated". "This deal", she concluded.
Only a handful of Conservative parliament members (those in May's party) spoke in favor of the agreement, which has taken 19 months of intensive negotiations to secure.
The leader of the Scottish Nationalist Party, Ian Blackford, said May "looks desperate and defeated" and is "trying to sell a deal that is dead in the water".
In an evening news conference aimed at regaining some control, May said she believed "with every fiber of my being that the course I have set out is the right one for our country and all our people".
A special website, complete with a fundraising drive and a series of videos criticising May's deal, will help Labour party members petition their MP.
She added: "I understand some people feel uncomfortable about the details in the backstop particularly in the Withdrawal Agreement and I share some of those concerns".
And some of her own backbenchers warned her it could not command support in the House of Commons, if it is put to a vote.
"The drawbridge has not been lifted up yet, if she shows she's listening", they said. "It is also a heavy responsibility ― that is true at any time, but especially when the stakes are so high".
Mordaunt is one of the last remaining pro-Brexit members of May's Cabinet, where she serves as worldwide development minister.
News that a deal had been struck after a year and a half of negotiations was welcomed in Brussels, and European Union chief Donald Tusk called for a November 25 summit of leaders so they can rubber-stamp the agreement.
The government unveiled its long-awaited draft withdrawal agreement on Wednesday, which sets out the terms of the UK's departure from the European Union, over 585 pages.
"I regret to say that, following the cabinet meeting yesterday on the Brexit deal, I must resign", he said on Thursday. It was not clear how many letters Brady had received by Thursday afternoon, but there was no announcement of a no-confidence vote. If a new referendum is called, it is possible that the government could include an option on the ballot that would essentially give voters another chance to reject Brexit completely.