Sir Keir Starmer’s premiership has lurched between crises, but his handling of the Mandelson scandal could prove to be fatal. Kate Devlin and David Maddox hear from Labour MPs who are furious about this week’s events, and fearful for the future

Prime minister’s own integrity and judgement under scrutiny as he admits he knew of Mandelson’s ongoing relationship with Epstein – but appointed him US ambassador anyway

MPs say release of papers on Mandelson’s appointment as US ambassador could trigger leadership challenge