UK Prime Minister Keir Starmer is facing significant pressure to resign after the Labour Party's disappointing results in local elections. Approximately 80 lawmakers from his party have called for him to step down. Starmer remains defiant, stating his commitment to governing, but the Labour Party's rules allow for a leadership change without a general election. If Starmer resigns, an interim leader would likely be appointed, possibly Deputy Prime Minister David Lammy. Leadership contenders must secure support from a fifth of the party's lawmakers and a percentage of local constituency parties. Potential candidates include Health Secretary Wes Streeting and Angela Rayner, though Andy Burnham, the popular mayor of Greater Manchester, is currently ineligible to run. Many within Labour believe that a change in leadership is essential to regain political momentum and address challenges from both the right and the left.