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David Davis’ former chief of staff has called for a new political party to be formed to reverse the ‘catastrophe’ of Brexit .

James Chapman, who was the Brexit Secretary’s most senior aide for a year until last month, suggested the new party could be called ‘The Democrats’.

He invited “sensible MPs” to break away from their parties and join together to stop Britain leaving the EU.

Last night, he tweeted: “Past time for sensible MPs in all parties to admit Brexit is a catastrophe, come together in new party if need be, and reverse it.”

He copied in a series of Remain-leaning MPs, including Chuka Umunna, Sir Nicholas Soames, Nicky Morgan, Anna Soubry and Stella Creasy.

He added: “Also, well past time for sensible journeys on papers that supported Brexit to admit it is going to destroy lives of many of their readers.”

(Image: AFP)

Lib Dem leader Vince Cable responded positively to Chapman’s suggestion, describing Chapman as a “very wise man” and adding: “I agree with David Davis’ ex chief of staff. The public should have a chance to exit from Brexit.”

Before joining the Department for Exiting the European Union, Chapman worked for George Osborne at the Treasury, where he was accused by Brexiteers of being at the head of “project fear.”