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EU leaders have thrown Theresa May ’s hopes of a Brexit deal this month into fresh jeopardy, after warning that crucial obstacles remain.
A meeting in Brussels was told there had been no significant progress on how to settle future disputes over the Irish border , with the two sides also still far apart on fishing rights .
The verdict, delivered at a briefing of EU27 ambassadors by the Brussels negotiating team, cast fresh doubt on the prime minister’s hopes of agreeing an outline deal by the middle of next week.
If that deadline is missed, it is unlikely that an emergency summit to sign it off can be held in November – throwing back a final agreement until the middle of December.
That would leave the UK having to ramp off hugely expensive no-deal preparations and in danger of being unable to pass all necessary legislation before Brexit day next March.
An “optimistic” timetable, floated by Downing Street, imagined Dominic Raab , the Brexit secretary, and Michel Barnier , the EU negotiator, was presented with a legal text agreed by officials on Tuesday.
But the ambassadors’ meeting was told, by Mr Barnier’s deputy Sabine Weyand, that there was no agreement on a joint review mechanism to allow the UK to break free of the Irish border “backstop”.
Liam Fox , the international trade secretary, raised the stakes when he insisted that decision must be made alone by the “sovereign British government”, without EU involvement.
The fear of pro-Brexit Tories is that the UK will be locked indefinitely into the EU customs union – unable to sign its own trade deals – unless it can end the backstop unilaterally.
A historic moment: thousands march to demand Final Say on BrexitShow all 65 1 /65A historic moment: thousands march to demand Final Say on Brexit A historic moment: thousands march to demand Final Say on Brexit An estimated 700,000 people marched through London to demand a final say on the withdrawal agreement
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Red smoke from a canister hangs in the air as around 100,000 demonstrators march through London during a People's Vote anti-brexit demonstration savings banners and placards Anti-Brexit People's Vote March for the Future in London
Rex
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Mayor of London Sadiq Khan takes part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum.
PA
A historic moment: thousands march to demand Final Say on Brexit Final Say campaigners take part in the peoples vote march for the future in London 20/10/2018 Protesters wearing final Say shirts and holding placards
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit MP Chuka Umunna (left) and MP Vince Cable (right) as MP Anna Soubry (centre) addresses Anti-Brexit campaigners at a rally after the People's Vote March for the Future in London, a march and rally in support of a second EU referendum.
PA
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit A People’s Vote march attendee calls for a Final Say
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit Demonstrators with banners 'We're with EU' during the People's Vote March for the Future in London, Britain, 20 October 2018. Reports state that the 'March for the Future' is to be led by a column of young people and call for a People’s Vote on the Brexit deal. After marching through central London, there will be a rally on stage in Parliament Square, including speeches from Mayor of London Sadiq Khan.
EPA
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Protesters at London’s march for the future in October
The Independent
A historic moment: thousands march to demand Final Say on Brexit Editor of The Independent Christian Broughton speaks to demonstrators in Parliament Sqaure after they take part in a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit A poster at the March for the Future in October
The Independent
A historic moment: thousands march to demand Final Say on Brexit Anti-Brexit campaigners take part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum.
PA
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Final Say campaigners take part in the peoples vote march for the future in London 20/10/2018
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Anti-Brexit campaigners take part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum.
PA
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Demonstrators hold placards as they take part in a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit Final Say campaigners take part in the peoples vote march for the future in London 20/10/2018 campaigner wrapped in EU flag
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit
Angela Christofilou/The Independent
A historic moment: thousands march to demand Final Say on Brexit Final Say campaigners take part in the peoples vote march for the future in London 20/10/2018
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit Demonstrators pass Trafalgar Square as they take part in a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit Demonstrators wave Union and European flags and hold up placards as they pass Trafalgar Square, taking part in a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit Demonstrators hold placards as they take part in a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit A demonstrator holds a message during a march calling for a People's Vote on the final Brexit deal, in central London on October 20, 2018. - Britons dreading life outside Europe gathered from all corners of the UK to London on Saturday to try to stop their country's looming breakup with the EU.
AFP/Getty
A historic moment: thousands march to demand Final Say on Brexit Anti-Brexit campaigners take part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum.
PA
A historic moment: thousands march to demand Final Say on Brexit Demonstrators take part in the 'People's Vote March for the Future,' in central London, Britain, 20 October 2018. Reports state that the 'March for the Future' is to be led by a column of young people and call for a People’s Vote on the Brexit deal. After marching through central London, there will be a rally on stage in Parliament Square, including speeches from Mayor of London Sadiq Khan
EPA
A historic moment: thousands march to demand Final Say on Brexit A protester brandishes an Independent t-shirt during the Brexit March
Angela Christofilou
A historic moment: thousands march to demand Final Say on Brexit Anti-Brexit campaigners take part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum
PA
A historic moment: thousands march to demand Final Say on Brexit Tens of thousands of people take part in People's Vote March for the Future in central London. The march organised by the People's Vote campaign is led by young people calling for a People's Vote on the Brexit deal
Rex
A historic moment: thousands march to demand Final Say on Brexit Anti-Brexit campaigners take part in the People's Vote March for the Future in London, a march and rally in support of a second EU referendum
PA
That is unacceptable to Brussels, which – according to one report – has also rejected Britain’s proposal of independent arbitration, to decide when technology is available to avoid border checks.
The EU is believed to have insisted it would be legally impossible for such a crucial decision to be made by a body other than the European Court of Justice – which is equally unacceptable to the UK.
Britain has also demanded that the fishing sector be excluded, even as it seeks for the entire UK to stay in the customs territory if the backstop is required after the transition period, at the end of 2020.
EU member states with big fishing industries have protested they must still have access to British waters, in return for the UK enjoying tariff-free access to EU markets, where it exports 75 per cent of its total catch.
The backstop would also require the UK to retain Brussels competition, state aid and tax rules, effectively staying in the EU single market , say Brexiteers.
It was also reported that the ambassadors have told the European Commission they must scrutinise any deal reached before it is made public and a special summit called.
If the member states insist on several days to go through the text, that would appear to kill off a summit this month – 25 November having been put forward as the last possible date.
The EU has said it requires close to a fortnight for its capitals to prepare, although Downing Street has suggested a week should be sufficient.
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