Sir Keir Starmer's closest parliamentary aide has resigned after she was accused of spreading false rumours about Angela Rayner's private life during a bitter briefing war over the weekend. Carolyn Harris, who has served as Sir Keir's parliamentary private secretary since he was made leader, is accused of spreading "nasty, personal stuff" about deputy leader Ms Rayner, according to party insiders. The departure of Ms Harris will be seen as a major blow to Sir Keir, whose authority has already been called into question over the handling of his frontbench reshuffle. She was considered his link to backbench MPs and was among his staunchest supporters, with the two having formed a close bond since entering Parliament together in 2019. The Labour leader's problems appeared to worsen on Tuesday night as a new poll suggested that his approval ratings had fallen significantly. A survey from YouGov gave him a net rating of -48, with just 17 per cent of voters saying he is doing well and 65 per cent saying he is doing badly. At around the same point in Jeremy Corbyn's leadership, he had a net rating of -40 per cent.