UK politics: Starmer's sudden resignation

Britain has entered another moment of political upheaval. Keir Starmer, who led Labour to a landslide victory less than two years ago, has announced he will step down after losing support inside his own party. His successor could become Britain’s seventh prime minister in just ten years, raising a larger question: is this simply the fall of one leader, or a sign of deeper problems in British politics? What factors led to his resignation? How should his time in office be assessed? And can a new Labour leader restore stability at a time of economic pressure, voter anger and growing political fragmentation?