Wes Streeting, the Labour MP for Vauxhall and Health Secretary, has started a leadership contest to oust Prime Minister Keir Starmer.

This challenge represents a significant internal rupture within the Labour Party, potentially destabilizing the current government if a challenger can successfully trigger a formal ballot.

Streeting said he has the backing of the 81 Labour MPs [1] required to initiate the leadership race. This specific threshold of lawmakers is necessary to force a contest under party rules. "Yes I have the support I need to be on the ballot," Streeting said [1].

However, the move has already met internal resistance. Deputy Prime Minister David Lammy said he doubted whether Streeting has actually secured the backing of the 81 MPs [4]. The discrepancy between Streeting's claims and the government's internal assessment creates a period of uncertainty regarding the legitimacy of the challenge.

Reports on Streeting's current standing within the cabinet are inconsistent. Some reports indicate that Streeting resigned as Health Secretary on Thursday to set up the potential contest [3]. Other accounts continue to identify him as the Health Secretary without mentioning a resignation [1].

Streeting's effort to replace Starmer comes as a direct challenge to the prime minister's authority. If the threshold of 81 MPs [1] is verified, the party will move toward a formal leadership election to determine who will lead the government.

"Yes I have the support I need to be on the ballot"

A successful leadership challenge would force Keir Starmer to defend his position in a party-wide vote, shifting the government's focus from policy implementation to internal political survival. The conflict between Streeting and David Lammy suggests a divided cabinet, and the ambiguity over Streeting's resignation indicates a volatile transition period for the Health Ministry.