Justice secretary David Gauke fears no-deal would lead to the break-up of the Union

David Gauke announces today that he will resign from the cabinet on Wednesday because he cannot serve under Boris Johnson while he is pursuing a no-deal Brexit that would bring national “humiliation”.

The justice secretary said he would hand his resignation letter to Theresa May after prime minister’s questions rather than wait to be fired when her successor takes over.

“If the test of loyalty to stay in the cabinet is a commitment to support no-deal on October 31 — which, to be fair to him, Boris has consistently said — then that’s not something I’m prepared to sign up to,” he said.

“I recognise that this spell in government is coming to an end. Given that I’ve been in the cabinet since Theresa May