Labour's Sagal Abdi-Wali won Holborn and St Pancras with 12,292 votes to Green leader Zack Polanski's 8,928 — a 45% to 33% split that looks comfortable until you notice the denominator. Turnout was 38.7%, the lowest for any byelection held in England this parliament and 15.4 points below the 2024 general election. Labour won convincingly among those who showed up, but a lot of people didn't. The result does confirm one genuinely important thing: Andy Burnham can hold together Labour's broad coalition. After seeing off Reform in Makerfield — his pathway to Downing Street — he has now defended a seat whose electorate is almost the demographic inverse. Holborn and St Pancras is 43% social housing, nearly half aged 18-34, roughly half born abroad, with a 20% Muslim population. These are the voters Labour haemorrhaged over Gaza under Starmer, whose majority here collapsed from 27,763 to 11,572 in 2024. Burnham's repositioning — apologising for Labour's slow ceasefire call, sanctioning trade with illegal Israeli settlements via Ed Miliband — appears to have partially cauterised the wound. But only partially. Polling expert John Curtice noted that 45% of the vote is still four points below Starmer's already-diminished 2024 result. Labour's vote in this constituency remains well below its 2017 and 2019 levels. The structural damage from the Starmer era is healing, not healed. The Greens' story is more complex than either party's spin suggests. Polanski tripled the Green vote share and hit 33% — historically remarkable for the party. But he is substantially weaker than the spring polling peak when the Greens were near 20% nationally, and well short of the Gorton and Denton result in February where the Greens pushed Labour into third. Former Green leader Caroline Lucas was quick to criticise Polanski for not showing leadership over the controversial Zionism policy vote, suggesting internal tensions about the party's direction. The constituency itself illuminates the contradictions Burnham must manage. It spans Primrose Hill media executives and Euston school leaders facing falling pupil numbers from inadequate family council housing. Reform spokesperson Zia Yusuf's dog-whistle attack on Abdi-Wali's Somali birth — condemned as "straightforward racism" by Labour — may have inadvertently helped consolidate Labour voters who were tempted by the Greens. Reform has no foothold here, but it can still shape results from outside. Former YouGov president Peter Kellner argued Labour had defied its "truly dreadful record defending its own seats when it is in government and faces a by-election challenge from the left." That's a genuine accomplishment. But Curtice's blunter assessment matters more for strategy: calling a general election now would still be "an extremely risky project" for Labour. Burnham has consolidated vibes into votes, but he has not yet consolidated votes into a governing majority. Polanski's shift in language tells its own story. He entered the leadership saying the Greens would replace Labour. At conference, the line became "Vote Green, watch Labour move." That's a party recalibrating from insurgent to pressure group — a tacit admission that Burnham has absorbed enough of the Green platform to make outright replacement implausible for now. The question is whether that absorption is real policy or conference rhetoric.
