Prime Minister Sir Keir Starmer is under increasing pressure from within his own party to set a timetable for his departure from Downing Street. The calls intensified following Andy Burnham's decisive victory in the Makerfield by-election, signaling a growing desire among Labour ranks for a change in leadership.

A significant number of Labour Members of Parliament are now urging Sir Keir to announce plans to transition power to the former Greater Manchester mayor. This push aims to preempt a potentially divisive leadership contest that could destabilize the party.

Sources indicate that Transport Secretary Heidi Alexander, during a recent conversation, suggested Sir Keir outline a timeline for leaving office. This follows similar urgings last month from a group of ministers, including Home Secretary Shabana Mahmood, who expressed concerns after the party's performance in local elections.

Despite the mounting pressure, the Prime Minister has publicly stated his intention to contest any challenge and remain in his post. Allies of Mr. Burnham have advised Sir Keir to reflect over the weekend and consider the views of his cabinet ministers, MPs, and family. Representatives for both Mr. Burnham and another potential contender, Wes Streeting, have declined media interviews, seemingly to allow the Prime Minister space to reconsider his position.

When asked about setting an exit timetable, Sir Keir told the BBC that he was elected to serve the country and had achieved economic stability and controlled immigration. He expressed a desire to do more, but also affirmed his commitment to run if a contest occurs, stating he would not walk away.

In a call with Labour staff, Sir Keir emphasized the need for party unity, warning against plunging the party and country into chaos by internal conflict. He drew a parallel to the previous government, suggesting the current party should learn from past mistakes.

The victory in Makerfield for Andy Burnham is seen by many as a significant endorsement and a clear signal of his leadership potential within the party. His allies believe this win provides a strong mandate for him to be considered a leading contender for the top job.

Questions remain about the internal dynamics of the Labour Party and how Sir Keir Starmer will respond to these escalating calls for a leadership transition. The coming days are expected to be crucial in determining the party's direction.