How would a Labour leadership contest work?
Navigating a Potential Labour Leadership Contest
Sir Keir Starmer is currently battling to retain his position as prime minister, facing intensified pressure after more than 90 members of his own parliamentary party called for his resignation, accompanied by the departure of five ministers. In response to the turmoil, former health secretary Wes Streeting has announced his intention to enter any leadership race. Meanwhile, Greater Manchester mayor Andy Burnham, who must first return to the House of Commons to compete for the top job, has been formally selected as Labour’s candidate in the upcoming Makerfield by-election. Starmer has cautioned his party that initiating a leadership contest could lead to significant "chaos."
The Source of Internal Pressure
The call for Starmer’s resignation stems from Labour’s poor performance in the largest election cycle since its decisive victory in 2024. The party suffered substantial losses in local elections across England, shedding nearly 1,500 council seats. This decline was exacerbated by a surge in support for Reform UK and the Green Party, which eroded Labour’s traditional base.
The setbacks were not limited to local government. Labour was ousted from power in Wales, ending a century of political dominance there. Additionally, the party secured only 17 of the 129 seats in the Scottish Parliament, marking its worst-ever result at Holyrood.
According to BBC counts, 92 Labour MPs have publicly demanded that the prime minister either resign immediately or establish a timeline for his departure. Beyond Streeting’s resignation, four junior ministers—Jess Phillips, Zubir Ahmed, Alex Davies-Jones, and Miatta Fahnbulleh—also stepped down. Conversely, over 150 MPs have signaled their backing for Starmer, arguing that a leadership contest is premature.
The Mechanics of a Challenge
To force a leadership election, MPs opposed to Starmer’s tenure would need to secure the support of 20% of the party’s parliamentary representatives. With 403 Labour MPs currently holding seats, this threshold requires 81 nominations. Any other potential candidates wishing to join the race would also need to secure the same number of backers.
If Starmer chooses to run, he would not need to gather nominations; he would automatically appear on the ballot. Throughout the duration of any leadership contest, Starmer would remain in his role as prime minister. Notably, no Labour prime minister has ever previously faced a formal leadership challenge from within their own parliamentary ranks.
How the Voting System Operates
The selection of the new Labour leader involves both party members and affiliated trade union supporters. Voters rank candidates by preference, assigning a number one to their top choice, two to their second, and so forth.
The winner is determined through an instant-runoff system. If a candidate achieves more than 50% of the first-preference votes, they are declared the winner immediately. If no one reaches this majority, the candidate with the fewest first-preference votes is eliminated. Those ballots are then redistributed to the voters' second choices. This elimination and redistribution process repeats until one candidate secures a majority.
The specific timeline for the ballot is set by the party’s National Executive Committee (NEC). For context, the 2020 leadership contest allowed candidates time to secure nominations before a six-week voting period. That election was initiated after Jeremy Corbyn announced his resignation following Labour’s defeat in the 2019 general election.
Potential Candidates
Wes Streeting, Greater Manchester mayor Andy Burnham, and former deputy prime minister Angela Rayner are viewed as the primary contenders to replace Starmer.
Wes Streeting Following his resignation as health secretary, Streeting stated he had "lost confidence" in the prime minister. He has confirmed his readiness to participate in any leadership contest. Streeting is widely regarded as the cabinet’s most effective communicator and highlights the reduction in NHS waiting lists as a key achievement of his tenure.
Andy Burnham Burnham is ineligible for the leadership contest until he regains his seat in Parliament. He has been officially confirmed as the Labour candidate for the Makerfield by-election, scheduled for Thursday, 18 June. Burnham has expressed his desire to "bring the change we have brought to Greater Manchester to" the national level.
Source: BBC News Generated at: 2026-05-26 09:17:53 UTC





