Labour’s setbacks in England, Wales and Scotland have triggered a crisis of confidence around Keir Starmer’s leadership, while revealing a deeper political fragmentation that no major party yet appears able to contain.

The May elections could test Reform’s reach, Labour’s resilience, and devolved politics across England, Scotland and Wales.

Keir Starmer faces an existential crisis as high-profile resignations and the Peter Mandelson scandal threaten to end his premiership prematurely after less than a year. But will he resign?