Keir Starmer resigns as Labour leader and UK Prime Minister, becoming the sixth premier to step down in a decade.
The resignation follows immense political pressure after a significant by-election loss in Makerfield.
Starmer faced consistently low public approval ratings throughout his term, never achieving a sustained post-election honeymoon period.
The instability of his government was driven by a fragmented electorate and the lingering influence of Brexit-era polarization.