Labour Party leader Keir Starmer has become the United Kingdom’s 58th Prime Minister, marking the end of the Conservative Party's 14-year rule. As he moves into 10 Downing Street, he will be greeted by Larry the Cat, the long-serving 'Chief Mouser,' who has witnessed the tenure of five other Prime Ministers since his adoption in 2011 by David Cameron. Larry has become a beloved figure, known for his duties in rodent control and his significant social media presence. This transition is notable as Starmer is the first Labour PM Larry will encounter, with previous ones all being Conservatives. Larry's humorous social media post emphasized the importance of maintaining his meal schedule amid the political shift.