Voters go to the polls today in the Holborn and St Pancras by-election to choose a new MP to replace Sir Keir Starmer. Multiple outlets describe the contest as one of London’s most closely watched political races, with Labour aiming to hold the seat and Green Party leader Zack Polanski seeking to win it.

Polling coverage ahead of election day indicates Labour is ahead nationally, with one tracker showing a clear lead over other parties, though there is uncertainty about how strongly that translates to the London constituency. The Evening Standard and related coverage highlight a direct Labour–Green fight, with Labour’s Sagal Abdi-Wali presented as the frontrunner by bookmakers. Polanski and Green campaigners frame the race as competitive, with claims that the contest is close and a potential win would represent a major political upset in London.