Andy Burnham secured nominations from 322 of the U.K. Labour party's 403 members of Parliament on July 9, roughly 80% of the parliamentary party and four times the 81 required to stand, within hours of nominations opening to replace Keir Starmer as party leader and UK prime minister, the BBC reported the same day.

The scale of Burnham's support makes a rival bid extremely unlikely. Any challenger would struggle to gather the required nominations from the remaining lawmakers, while the main potential contenders, Wes Streeting and Al Carns, have confirmed they will not stand. Nominations close on July 16. If Burnham remains the sole candidate, the party will declare him leader on July 17 without a vote from Labour members. Starmer, still in office as caretaker, would then tender his resignation. Burnham would formally become prime minister around July 20, giving him the impending summer recess to form a government and prepare an agenda before Parliament returns in September.