The Prime Minister is warned that voters in traditional Labour Red Wall strongholds will never forgive him if he betrays Brexit

Reform UK leader Nigel Farage has warned Sir Keir Starmer he will face the wrath of voters in traditional Labour heartlands if he delivers an “abject surrender” to the European Union. Leaders from across the bloc will gather in London for a landmark summit on Monday at which the Prime Minister is expected to back a scheme to allow young European citizens to work in the UK as part of a deal to “reset” Britain’s relationship with the EU.

Mr Farage warned: “The Prime Minister thinks he’ll get away with this surrender deal but he underestimates how strong Brexit feeling still is in the Red Wall. The whole ‘reset’ is an abject surrender from Starmer and politically something he will come to regret.”

Former Tory cabinet minister Esther McVey also warned that voters in Labour’s historic strongholds will revolt if Sir Keir is seen to sell-out the UK.

She said: “Surrender Starmer is already haemorrhaging votes in the Red Wall. If he capitulates to the EU, he – and the Labour Party – will never be forgiven there.”

The warning from Mr Farage comes as Labour reels at the loss of former safe seat Runcorn and Helsby to Reform UK.

There are worries Sir Keir will bow to pressure from France and agree that European fishing vessels can continue harvesting stocks in British waters for five years. European states are also pushing for EU students to have lower fees in British universities, and Brexiteers fear the UK will pledge to match Brussels’ food standards.

Sir Liam Fox, Britain’s former International Trade Secretary warned such “regulatory alignment” would be a “betrayal of Brexit”.

He said: “We would have to obey changes in EU rules without having any say in how they are made. It would tie our hands in any trade agreements outside the EU.

“We would be defenceless supplicants, worse off than before the referendum.”

Negotiations are expected to go to the wire with diplomats ready to thrash out the details into the early hours of Monday morning. The PM has prepared the ground for a reciprocal youth mobility scheme, adamant it would not be a return to freedom of movement. The Government insists it is taking an approach of “ruthless” pragmatism.

But Lord Frost, who served as Chief Brexit Negotiator under Boris Johnson, warned: “Labour’s reset deal takes us a big step back towards EU control of this country… Labour doesn’t care about this country’s freedom and independence. They just want to be friends with their mates in Brussels, and they have literally given away the farm to get it.”

Former Business Secretary Sir Jacob Rees-Mogg claimed the EU is in decline, saying: “The European economies are failing while the rest of the world grows, it is the past. Why would we shackle ourselves to a cadaver?”

Labour insists the present post-Brexit settlement is not working for the country, with farmers and manufacturers hit with red tape. There is strong concern about declines in exports and delays at borders.

But Lord Jackson, who served as chief of staff to Brexit Secretary Sir David Davis, accused the Prime Minister of hiding the negotiations from parliamentary scrutiny, warning the Government is “preparing to formalise the UK’s role as supplicant to the EU” and “throwing away our strongest cards such as our fishing waters”.