Who is Andy Burnham, the U.K.'s new prime minister?

Andy Burnham has taken over as the U.K.'s prime minister, succeeding Keir Starmer, after a political career defined by addressing the class divide between England's northern and southern regions. Burnham, previously the mayor of Manchester, now faces the challenge of navigating the complex socio-economic landscape of the nation. This transition is significant as Burnham's background and policy focus on regional disparities could influence the government's approach to economic and social reforms. His leadership comes at a time when the U.K. is grappling with various internal and external challenges, making his tenure potentially pivotal for the nation's future direction.