Mapped: the elections that could deliver ‘unprecedented’ losses for Labour

All signs point to a record-low performance for Labour in May in what will be a moment of high jeopardy for Keir Starmer

Labour is on track for its worst local election performance, data analysed by the Guardian shows, in a blow that will pile further pressure on Keir Starmer's leadership.

Barring a drastic change in fortunes, Labour's vote-share could fall to historic lows across elections for councils in England and devolved parliaments in Wales and Scotland on 7 May, with big gains for Reform, the Greens and nationalist parties, according to recent polling.