Andy Burnham won a by‑election on Friday, securing a parliamentary seat. Keir Starmer announced his resignation. Burnham is the frontrunner to replace Starmer as the next UK prime minister. Multiple outlets describe Burnham as a former mayor of Greater Manchester, while other reports state he is currently the mayor of Greater Manchester.

According to the Hindu, Burnham's election win paves the way for a leadership challenge against Prime Minister Keir Starmer. Informedclearly.com reported that Starmer announced his resignation on June 22, 2026. Al Jazeera reported Burnham pledged devolution and discipline if he becomes UK prime minister. Hindustan Times reported Burnham is currently the mayor of Greater Manchester. DW reported Burnham is seen as the favourite to succeed Starmer as UK prime minister. Hindustan Times also reported Burnham is characterised as Starmer’s biggest rival in the Labour Party. Bluesky reported Burnham vowed to change Labour in a direct challenge to Starmer. Fox News reported Burnham has openly spoken about challenging Starmer as Labour leader. Bangkok Post reported Burnham is a veteran UK Labour politician. France 24 reported Burnham earned the moniker “King of the North” and that he lost two bids for Labour Party leadership. Informedclearly.com reported Starmer led Labour to a landslide general election victory and that his approval rating fell to –57%. Fox News reported Starmer faces a potential leadership challenge from Burnham.