US Vice-President J.D. Vance said Britain had been “failed by its leadership for a long time”, adding that he hoped the country’s next prime minister could deliver the structural change voters were seeking after years of political turmoil. In an interview with the Sunday Times newspaper, Vance said frequent changes of government pointed to deeper problems in British politics. Prime Minister Keir Starmer announced last month he would step down after two years in office, paving the way for...