Boris Johnson makes last-ditch appeal for Cabinet to kill off May's Brexit plan

Boris Johnson made a last-ditch appeal for the Cabinet to kill off Theresa May's Brexit plan today - as a leaked note claimed the UK will have to 'swallow' EU rules for good.

The former foreign secretary urged ministers to 'live up to their responsibilities' amid signs at least two are considering quitting. 

The call comes as the PM faces a 'judgement day' showdown with her senior team after a draft divorce agreement with Brussels was finally reached. 

Mrs May is engaged in frantic efforts to win over wavering ministers to the blueprint ahead of the meeting this afternoon.

But she suffered a major blow this morning when it emerged Michel Barnier's deputy, Sabine Weyand, boasted about the divorce package in a briefing for Brussels officials.

She apparently claimed the UK will have to 'align their rules but the EU will retain all the controls', bragging that Britain is effectively accepting staying in the customs union for good, and will have to 'swallow' demands over fishing waters.

The extraordinary comments will reaffirm the fears of Brexiteers - and could tip ministers over the edge ahead of a potentially explosive Cabinet meeting this afternoon.

Mr Johnson jibed today that the mooted package rules out a looser Canada-style relationship with the EU.

'This means super-Canada impossible. Cabinet must live up to its responsibilities & stop this deal,' he tweeted.

In a stunningly vicious backlash, Tory Eurosceptics and the DUP have warned Mrs May that her 'days are numbered' if she sticks to the plan. 

At least two ministers - Penny Mordaunt and Esther McVey - are considered at high risk of quitting. Cabinet sources told MailOnline that things were still 'up in the air'.

Mrs May might be able to survive one or two departures, but fears are running high that the whole process could spectacularly collapse.