Nominations have opened in a Labour Party election to replace Keir Starmer as Britain's prime minister. Former Greater Manchester Mayor Andy Burnham is expected to be the sole candidate. He needs at least 80 signatures from Labour lawmakers to run, a target he’s likely to exceed. Other potential contenders, including former Defense Minister Al Carns, have ruled themselves out. Nominations remain open until July 16. Burnham is highly likely to be announced as the new Labour leader the following day and to formally become prime minister on July 20. He is promising sweeping changes on the domestic front and continuity in foreign policy, but will face significant challenges.