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The president of the European Commission has said he would vote in favour of Theresa May’s Brexit deal if he had a vote in the UK parliament.
Jean-Claude Juncker said the agreement was “the best deal possible” and that the EU would not change its “fundamental position”.
It comes as EU chief negotiator Michel Barnier insists he has always “negotiated with the UK, never against” it.
The president’s comments are part of an EU-wide push to convince British MPs that the plan is worth backing. The arithmetic in the House of Commons currently suggests it will be rejected by a wide margin if nothing changes.
Mr Juncker described Britain’s departure as a “tragic moment”.
“I would vote in favour of this deal because this is the best deal possible for Britain,” he told reporters on the doorstep of a Brussels summit to sign off the deal.
“This is the deal. It's the best deal possible and the EU will not change its fundamental position when it comes to these issues.”
He added: “The UK leaving the EU is a tragic moment. Not a moment to celebrate.”
But arriving at the same meeting, French president Emmanuel Macron said: “It's not a day when we should celebrate, nor a day of mourning. It is the choice of a sovereign people.”
He added that Britain’s departure showed the EU had a “fragile” side and was in need of reform. He also pledged that the deal would protect the access of French fishermen to British waters.
Mr Barnier, who is also attending the meeting, said: “All along this extraordinary negotiation, very difficult we have worked to reach a deal. That means to organise in an orderly fashion the withdrawal decided by the UK.
“We have negotiated with the UK, never against the UK. Now it is time for everybody to take their responsibility, everybody.
“This deal is a necessary step to build trust between the UK and the EU, we need build in the next phase of this unprecedented and ambitious partnership. We will remain allies, partners and friends.”
Dutch prime minister Mark Rutte said there were “no political winners or victories” in the Brexit process.
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
He added: ”I don't expect a no vote. I expect a yes vote and this is the deal on the table. I don't think there's anything more."
Leaders are gathering in Brussels to sign off the deal after a last-minute climbdown by the UK over the issue of Gibraltar. British officials conceded in writing that any future trade deal between the UK and EU would only apply to Gibraltar with the consent of Madrid.
Thersa May had told MPs last week that any deal would have to apply to Gibraltar. Spain has always had a veto of the future trade deal, however, as does every other EU member state.
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