British politician and former health secretary
Starmer has announced he is stepping down as MP for Holborn and St Pancras after 11 years, triggering a by-election. He has cited a shift in focus to international affairs and other issues. The leadership transition follows Labour leadership changes and electoral pressure within the party.
A by‑election has been set for 8 October after Sir Keir Starmer has resigned as MP. Labour has selected Camden council leader Sagal Abdi‑Wali and the Greens have chosen leader Zack Polanski, turning the contest into a high‑profile test of Andy Burnham's early premiership and the Greens' electoral momentum in inner London.