In the aftermath of a by-election, the focus is usually on the winner. Not this time.
Make no mistake, the new MP for Holborn and St Pancras in north London, Sagal Abdi-Wali, has quite the story to tell.
She arrived in the UK as a child refugee from Somalia in the 1990s, grew up locally in Camden, became a councillor four years ago, the council leader in May and is now Sir Keir Starmer's successor as the MP.
But in the offices of Camden Council at three o'clock this morning, the focus of the press pack, me included, was on Zack Polanski, the leader of the Green Party of England and Wales, as we waited for the result.
This constituency has long been a safe Labour seat – the political home of the former prime minister and before that the former cabinet minister Frank Dobson. So a Labour victory here falls in the column marked "relief" for Downing Street rather than "jubilation".
Nonetheless, the Greens did very well in local elections in London in May, riding the crest of a political wave which began shortly after Polanski became the party's leader just over a year ago.
His failure to win here would have prompted questions from some about stalling momentum, but the party can and does point to the big swing to them since the general election and a result that was by a long way the second best ever result for them at a Westminster by-election.
Incidentally, in finishing third the Conservatives have beaten Reform UK for the first time in an English by-election since the general election. It seems likely that Reform's result was hampered by Restore Britain, who managed almost half as many votes as Reform did, in a constituency not very favourable to either party.
But the real reason for the nocturnal scramble of cameras, microphones and questions for Polanski had little to do with the by-election – and everything to do with a vote at the Green Party's conference in Brighton last weekend.
Activists there passed a motion declaring Zionism as a form of racism.
The motion defined Zionism as an ideology supporting "an ethnonationalist Jewish state" and backed a "single democratic Palestinian state in all of historic Palestine", which includes modern-day Israel.
Polanski didn't take part in the vote because, he said, he chose to campaign in Holborn and St Pancras instead. And – until today at least – he has been repeatedly declining to do interviews, as the pressure on him as ratcheted up.
"He has created a monster he either can't or won't control," was how one Green figure put it to me - this person one among many left furious at what has happened.
Party membership has increased more than three fold in the last year and internal critics of Polanski say this includes hard-left campaigners focused on the Middle East rather than environmental concerns.
Within the party and beyond it, a row is now boiling. Polanski, who is himself Jewish, has been banned from Israel. The Jewish Leadership Council and the Board of Deputies of British Jews have criticised the party, as have sister Green parties in Europe.
And – significantly – the former party leader and one of the most important figures in the Green movement of her generation, Caroline Lucas, told BBC Newsnight Polanski had failed to show leadership over the issue. She also failed to back him carrying on as leader.
Asked by reporters after the by-election result if he could continue as leader, Polanski insisted "of course I can carry on".
He did not explicitly reject the motion his party has passed, saying there was an "ongoing genocide and the displacement of the Palestinian people".
"I believe that is clearly racist," he added.
Israel has repeatedly denied its actions in Gaza amount to genocide.
And asked if he believed in a two-state solution – an Israeli and Palestinian state existing peacefully alongside each other – he said "I believe it is not our role to decide".
He repeated that "it is my job to reassure people and make sure that we bring our party together".
"No one will be excluded in the Green Party based on faith and religion," he said.
But Polanski now confronts the greatest crisis of his leadership so far. He faces open, public insurrection about his judgement from senior figures internally and opprobrium from plenty of others beyond the party.
The campaign in Holborn and St Pancras might be over. The questions for Polanski certainly aren't.
