Brexit: David Cameron joins all living former PMs in condemning Boris Johnson’s plan to break law

David Cameron has criticised Boris Johnson’s plan to break international law, warning that ignoring a treaty is “the very, very last thing you should contemplate”.

Mr Cameron joins John Major, Gordon Brown, and Tony Blair in condemnation, meaning all former living prime ministers have now urged the PM to change course.

“Passing an Act of Parliament and then going on to break an international treaty obligation is the very, very last thing you should contemplate. It should be an absolute final resort, so I do have misgivings about what is being proposed,” he said.

MPs on Monday are debating the Internal Market Bill, which includes provisions that violate the Brexit withdrawal agreement signed by Boris Johnson last year.

Critics say the move will undermine the UK’s standing in the world and make it harder to criticise other countries that shirk their obligations.

At the weekend Mr Blair and Sir John "irresponsible, wrong in principle and dangerous in practice".

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