On Monday, Prime Minister Keir Starmer declared his intention to step down, with plans for a new leader to be appointed by the time Parliament reconvenes in September. This change will mark the seventh leadership transition in the UK within a decade.

Understanding the Leadership Contest Process

To be considered as a candidate for Starmer's replacement, an individual must garner the backing of at least 20% of Labour's Members of Parliament (MPs). Given that Labour currently holds 403 seats, this means a candidate needs support from 81 MPs, including themselves.

Additionally, candidates must meet specific support criteria from grassroots Labour organizations and affiliated groups, such as trade unions.

Determining the Winner

If multiple candidates qualify, the winner will be chosen through a vote among all Labour Party members and affiliates. The successful candidate will then assume the role of Prime Minister.

Timeline for the Leadership Contest

While the party's governing body sets the official timeline, Starmer indicated that nominations would open on July 9 and close before Parliament's recess, which is set for July 16. He emphasized that if a contest arises, it should conclude before Parliament's return on September 1.

What If There’s Only One Candidate?

In the event that only one candidate meets the necessary support criteria, there will be no election; that candidate will be declared the Labour leader and will automatically become Prime Minister.