Starmer resigns: UK Prime Minister steps down as Labour leader after party revolt, new leader to be chosen by September.
British Prime Minister Keir Starmer has announced his resignation as leader of the Labour Party and will step down as Prime Minister after a successor is chosen, following mounting pressure from within his party over recent weeks. Speaking outside Downing Street on Monday, June 22, 2026, Starmer confirmed that he had informed King Charles III…

