The ERG deputy chair has warned that the public would be “very, very angry” if the country did not leave the EU on the scheduled day of 29 March.
Speaking to talkRADIO’s James Whale, Mark Francois said MPs had voted overwhelmingly to respect the result of the referendum and warned against further delays.
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Mr Francois said: “If members of the public come to believe MPs, senior civil servants and even members of the cabinet are using parliamentary tricks and maneuvers in order to do them out of the Brexit that they the public voted for, I think a lot of the members of the public in this country will get very angry, very quickly.
“Out there in the real world, outside of the babble in the bubble, the public know we’re supposed to leave on 29 March and if we don’t I suspect a lot of people will get very angry with their politicians and say you cheated us out of what we voted for.”
Today the Prime Minister warned MPs to back her deal when it comes before the Commons on Tuesday, or risk uncertainty and the possibility of a second referendum.
Speaking in Grimsby, Theresa May said: "Next week MPs in Westminster face a crucial choice: Whether to back the Brexit deal or to reject it.
"Back it and the UK will leave the European Union. Reject it and no one knows what will happen.
"We may not leave the EU for many months, we may leave without the protections that the deal provides. We may never leave at all."
Senior figures within the ERG have however indicated that the group is unlikely to back the Prime Minister on Tuesday unless she has secured meaningful changes to the Irish backstop.