Labour peer Harriet Harman has urged Keir Starmer to take stronger action over the scandal surrounding Peter Mandelson or risk losing his job. The prime minister is under immense pressure over his decision to appoint Mandelson as Britain’s ambassador to Washington last year, despite knowing about his relationship with convicted sex offender Jeffrey Epstein. While Mandelson was sacked in September, a new batch of files released by US lawmakers last week showed just how extensive their friendship was, putting the spotlight on Starmer’s judgement once again. The prime minister apologised to Epstein’s victims on Thursday, saying Mandelson had lied to him – but Harman, former deputy Labour leader, said that was not enough. She said: “I think it is so serious for Keir Starmer. I don’t think it’s inevitable that it will bring him down. “But it will bring him down unless he takes the action, which is really necessary for him to take, and that’s this: firstly, he’s got to stop blaming Mandelson and saying, ‘he lied to me’. Because actually he should never …