Sir Keir Starmer has moved to reassure Labour MPs of his leadership, telling colleagues that he has “won every fight” he has faced, as he vowed to remain in post amid renewed controversy linked to Lord Mandelson.

Speaking at a private meeting of Labour MPs, the prime minister struck a defiant tone, framing the current row as another challenge he intends to overcome rather than a threat to his position. According to those present, Starmer emphasised his record of political resilience and made clear that he has no intention of stepping aside.

The comments come as Labour faces mounting pressure over questions surrounding Mandelson’s role and influence, with critics inside and outside the party arguing that the issue risks undermining the government’s message on standards, transparency, and renewal. Opposition figures have seized on the controversy, portraying it as evidence of unresolved tensions between Labour’s past and its promise of a fresh start.

Starmer, however, sought to draw a clear distinction between political noise and governing priorities. Allies say he told MPs that his focus remains on delivering the government’s agenda, warning against internal division at a time when Labour is seeking to project stability and competence.

Senior figures close to the leadership have downplayed the impact of the Mandelson row, insisting it does not affect the government’s day-to-day work and arguing that the prime minister retains the confidence of both his cabinet and the parliamentary party. Several MPs leaving the meeting described Starmer as “combative” and “determined,” suggesting the intervention was aimed at closing ranks.

Nonetheless, the episode highlights the delicate balancing act Starmer faces as leader: maintaining unity within Labour while addressing public concerns about influence, ethics, and accountability. Whether his show of confidence succeeds in containing the fallout may depend on how long the controversy continues to dominate headlines.

For now, Starmer’s message to his party is unequivocal. He intends to fight on—and he believes history is on his side.