Tory MPs have told Theresa May she should step down as Prime Minister even if her Brexit deal is not agreed by the House of Commons.

Mrs May said she would quit and allow somebody else to take charge of the next stage of Brexit talks with the EU if MPs backed her deal.

But the Prime Minister is already facing pressure to resign regardless of whether she can win a third meaningful vote on her agreement.

Pauline Latham, a Tory Brexiteer and member of the European Research Group, said that now Mrs May had talked openly about quitting “you can’t put that back again”.

She said: “I was relieved when she said she was going to go. I will be very disappointed now if she didn’t go even though she caveated the terms on which she would go.

“I will be very disappointed if she doesn’t go because she doesn’t get her deal through because you can’t put that back again.”