Keir Starmer's party lost big in U.K. local elections. Here's what comes next.

Britain's Prime Minister Keir Starmer speaks, during a meeting with leaders from across society to discuss tackling antisemitism, at Downing Street in London, Tuesday, May 5, 2026. Hannah McKay/AP/Pool Reuters hide caption toggle caption Hannah McKay/AP/Pool Reuters U.K. Prime Minister Keir Starmer and his Labour party suffered major losses in elections held across Britain last week, resulting in multiple calls for Starmer to resign. …