Groups sensing chance to redefine party’s direction push for progressive pivot, cabinet reshuffle and new economic tack

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As the prime minister fought for his political life before Labour MPs at their Monday evening meeting, even hardened sceptics saw a flash of something different in Keir Starmer.

Ed Miliband, the energy secretary, said Starmer had been “liberated”. He did not have to spell out who from. His comments came 24 hours after the departure of Starmer’s chief of staff, Morgan McSweeney, a man who has shaped Labour’s modern incarnation.

McSweeney’s presence loomed the largest over any other in Starmer’s government, and his departure means there are many cabinet ministers, groups and factions of the party who spy an opportunity to define what comes next.