Prime Minister defiant over defence spending

Keir Starmer vows to fight on, after ministers John Healey and Al Carns resign over defence spending. Also on the programme, David Hockney dies at the age of 88. We look back on the life of one of Britain's best loved artists, and hear from those he painted and those he relied on. We speak to Scarlett Clark, granddaughter of British designer Celia Birtwell, who were both the subject of Hockney portraits.