THERESA May was told yesterday that she has lost the support of her MPs.

The Prime Minister was urged by backbenchers to set a date for her resignation or risk being forced out of Number 10.

It was another astonishing day in Westminster, with May’s leadership being hugely undermined.

Her backbenchers even discussed changing party rules to allow them to call a second vote of no confidence in the Prime Minister this year.

Tory MP Nigel Evans, who is the joint executive secretary of the 1922 Committee, told the BBC he would be “delighted if [May] announced today she was announcing her resignation and we could then have an orderly election to choose a new leader of the Conservative Party”.

Brexiteer Tory MP Lucy Allan even admitted that she was considering breaking party rules and voting for Nigel Farage’s Brexit Party in next month’s European elections.

The National: Tory MP Lucy AllanTory MP Lucy Allan

Usual party loyalties, she told Buzzfeed, had been “eclipsed by the Leave versus Remain divide”.

READ MORE: Anger with Theresa May sees Tory voters and councillors stop voting Tory

Meanwhile Edward Leigh, another Tory MP, told the Commons that his party had “pissed off” half their supporters with their handling of Brexit.

It all came as Number 10 met with the Labour leadership in a bid to try and get the Prime Minister’s deal through Parliament.

There was a suggestion May could give MPs another meaningful vote on her agreement with Brussels as soon as next week.

Getting the deal passed would mean the UK could pull out of the European elections planned for May 23.

May’s official spokesman said: “Every day that Parliament doesn’t ratify the withdrawal agreement, the harder it will be to avoid the European Parliamentary elections, and the Prime Minister has made clear that she doesn’t believe it is in the country’s interests to take part in those elections.”

READ MORE: Prime Minister Theresa May faces new Tory leadership vote

However, May’s deal was rejected for a third time last month, and the only way the Tory leader can get it passed is with Labour votes, but that seems unlikely with talks to find some form of consensus faltering again last night.

Jeremy Corbyn accused May of being unwilling to negotiate.

The National: Labour leader Jeremy CorbynLabour leader Jeremy Corbyn

“There’s got to be a change in the Government’s approach,” he said after talks. “They cannot keep just regurgitating what has already been emphatically rejected three times by Parliament.

“There’s got to be change. We have a window of opportunity to bring about that change. I hope that Government recognises that and calls in on that window and makes the most of it.”

Downing Street said the discussions with Labour had been serious but difficult and that Corbyn’s party were dragging their feet.

The Prime Minister’s official spokesman said: “It is clear that Labour has approached [the talks] in a serious manner and has been engaging constructively, and has been holding very serious and thorough discussions in the negotiation meetings.”

Meanwhile, Change UK, the indepedent group, unveiled their candidates for the European election.

Boris Johnson’s sister Rachel is to stand for the party in the South West region, while former BBC Newsnight presenter Gavin Esler is standing in London.

The National: Rachel Johnson, pictured with father StanleyRachel Johnson, pictured with father Stanley

The party’s Scottish candidates include Glasgow University tutor Joseph Russo, and PR and marketing consultant Heather Astbury.

David Macdonald, Kate Forman, Peter Griffiths and Catherine Edgeworth make up the rest of Change UK’s slate for Scotland.

Party boss Heidi Allen said 3700 people had offered to stand as party candidates in the European elections: “This is no rebel alliance – this is the home of the Remain alliance.”