May insists rebels who want her gone won't make Brexit better

"I have worked very closely with her on Brexit and I think there is still the opportunity to get this right, support the Prime Minister - but she must also listen and change course on Brexit".

Leadsom told the BBC on Saturday that the deal needed improving and that the 'UK can not be trapped in a permanent customs arrangement.' Many are sceptical as to whether the European Union would make significant concessions if forced back to the negotiation table.

"These next seven days are going to be critical, they are about the future of this country", May told Sky News. "Am I going to see this through?"

Letters from 48 Conservative MPs will be needed to spark a leadership contest, and its reported that close to that number have said they want Theresa May to go.

Boris Johnson, a leading critic of May's Brexit plans who has done little to hide his political ambition, attended a meeting of the European Research Group, where Rees-Mogg and members discussed how many no-confidence letters had gone in.

She told Sky's Sophy Ridge that Sir Graham Brady "will make it known if 48 letters are reached".

Brexiteers plotting to remove her insist they are close to winning enough support for a vote of no- confidence among Tory MPs but observers do not believe they have the numbers to win it.

Mark Francois, one lawmaker who has submitted a letter, said he expected some colleagues were taking soundings from local party members in their constituencies over the weekend before deciding whether to submit a letter.

'If a general election isn't triggered soon, we need a People's Vote'.

The senior backbencher also revealed he was not totally happy with Mrs May's withdrawal agreement.

The DUP, a small Northern Irish party which props up May's minority government, has threatened to pull its support if the backstop means the province is treated differently from the rest of the United Kingdom.

It is a "backstop we never intend to use", she said, adding: "Were it to have to be used, both sides can review it".

May will be traveling to Brussels to meet with EU leaders before an emergency European Council summit on November 25.

In either circumstance, her version of Brexit, as set out in the withdrawal agreement and future relationship document, would be in doubt.

At a hastily scrambled press briefing, Mrs May issued a stark warning: "If we do not move forward with a Brexit agreement, we can not know what will follow".

The Prime Minister's top team has reportedly threatened to walk out en masse if changes are not made to her current Brexit plan.

Two British Cabinet ministers, including Brexit Secretary Dominic Raab, resigned Thursday in opposition to the divorce deal struck by Prime Minister Theresa May with the European Union - a major blow to her authority and her ability to get the deal through Parliament.

Dr Hannah White, deputy director of think tank the Institute for Government, said: "The argument is that in the House of Commons one of the important principles is the views of minorities should be heard".

Labour leader Jeremy Corbyn said his party could get a better deal in time for Brexit.

He said he voted Remain in the 2016 referendum but if there were to be another, he said: "I don't know how I would vote - what the options would be at that time". However, there was a more even split when the poll asked if she should carry on "for the foreseeable future", with 38pc saying she should and 41pc saying go. "What's the question going to be?"