He served through the eras of Blair, Brown, Miliband and Corbyn in a party that knows and respects him. It will matter that even his patience has run out, says Guardian columnist Gaby Hinsliff

John Healey announced he was leaving Cabinet with a brutal parting shot at Keir Starmer after months of bitter wrangling over the Defence Investment Plan.

John Healey's resignation deepens Starmer's crisis as defence secretary quits over military spending dispute.