He said there was no collusion in the Johnson ranks, adding: “I wasn’t aware of Jo’s resignation till he announced it.
“I’m absolutely in favour of where he is and I think it’s crucial to ensure there is a coalition in Parliament ready to block the Government’s proposals.”
Jo is a Remainer and Boris was a chief figure in the Leave campaign but their father, a Tory ex-MEP, insisted both are now in agreement on the UK’s prospect of a Brexit deal with Brussels.
“There’s no difference between them in that there’s total opposition to the Chequers proposals,” he said.
“Mrs May has been fired at – cannon to the left, cannon to the right – but is charging on into the jaws of death.
“This process has absolutely not delivered what the British people might have expected when they voted to leave the EU.
“My concern is not the Government collapsing, it’s making clear we can’t go on with this proposal.
“It needs to die a death and if as a result of that there is a rethink of where we are, so be it.
“Some things are more important than the survival of a government.”