TONY Blair’s closest allies were snapped at a private meeting with top Remain backers at one of London’s most exclusive restaurants.

The Sun can reveal former Blair spin-doctor Alastair Campbell urged the powerful guests that they must “fight back” on Brexit at a plush dinner at West London’s River Cafe on Wednesday evening.

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He joined Labour grandee Peter Mandelson to wine and dine powerful figures who had fought against Britain leaving the EU such as ex-Mi6 boss Sir John Sawers.

The lavish dinner came the evening before the former Labour PM claimed Brexit could still be "stopped".

A source said Mr Campbell urged the diners to “fight back” against Britain’s exit from the EU.

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He also wrote on Monday: “Part of me yearns for the losers to show more fight.”

The meeting came about after billionaire donors chipped in for dinner with the pair at a big Remain campaign fundraiser before June's referendum.

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The posh River Cafe in Hammersmith boasts £2,400 wines and Italian dishes like Gallo Cedrone – a whole Yorkshire Grouse wood-roasted – for £40.

Lord Mandelson was also photographed leaving the event clutching a copy of Mr Campbell’s new book.

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