Sir Keir Starmer is clinging on after surviving the toughest day of his premiership so far this week, when Scottish Labour leader Anas Sarwar became the most senior Labour figure to call for him to quit.
The prime minister has been at the centre of a political storm since admitting he was aware of Peter Mandelson’s relationship with Jeffrey Epstein even after his conviction for child sex offences when he appointed him as US ambassador.
