But others remain embittered about a party whose former leader they believe failed to serve their constituency and country. They say they will instead cast an “anti-Starmer” vote by backing the Green Party.

Labour has comfortably held the inner London seat since it was created in 1983, but after the party haemorrhaged seats across the capital in the local elections in May, the by-election is seen as a two-horse race between Labour’s Sagal Abdi-Wali and the Greens’ Zack Polanski.

The stakes are high for the Green Party leader, who hopes to repeat his party’s success in local elections, when it gained control of three London boroughs.

It will also be a crucial test for the prime minister, who some believe is using it as a test-run to determine whether he should call an early general election.

Camden council leader Ms Abdi-Wali, who arrived in the UK as a child refugee from Somalia aged six, earlier told : “I don’t feel like I’m going up against anyone.”

For Andrea Goddard, a 72-year-old retired paediatrician, Sir Keir’s resignation will mean a vote for Labour this Thursday.

“I have in the local council elections previously voted for the Greens, however I was deeply unimpressed that they chose an ineligible candidate,” she said.

Gaza has become a key talking point in the by-election, with Green Party activists sending out leaflets that accuse Labour councillors of showing no solidarity. Meanwhile, news that the Greens voted to adopt a policy that equates Zionism with racism is clearly having a significant impact in north London.

Ms Goddard, who believes the Green leader has “peaked”, said: “I know [Polanski] didn’t vote [to adopt the policy]…but I just think that is going too far. I think the whole situation in Gaza is appalling, that it is a genocide, but I don’t think you can call all Zionists racists.”

She says Mr Burnham is “way better” at conveying his message than his predecessor and agrees with his government’s sanctions against Israel.

Former Labour supporter Uma Bhardwaj disagrees and will be “voting anti-Starmer” by backing Mr Polanski on Thursday.

“I was very disgusted with Keir Starmer's policies, especially in relation to Gaza. I do think his failure to hold Israel to account has led to the problems that we’re seeing now,” she said.

She describes Mr Polanski as a “challenging” figure who is “prepared to say what he thinks”.

“He has definitely moved the dial, he has given the Greens a bigger profile,” she says. “But it looks as if it’s going to be a hard task [for Polanski to win].”

Sasha Ellis, a 31-year-old fashion designer, also feels let down by Labour, but hasn’t decided who to back.

She says Mr Polanski could be an option, as Labour, the party she has previously backed, is “not so good at the minute”.

“I don’t think they’re doing great”, she said. “I just don’t really feel like it's going in the right direction.”

Camden resident and policy manager Fariba Soetan, 47, is tossing up a vote between the two, but thinks she will probably vote Labour, as the Green leader is a “little bit of a maverick”.

“It’s a close one. I think I’m going to go to Labour in the end. It’s tough to go from Keir Starmer, who is the prime minister to someone who is little known in the borough. Obviously, Zack Polanski is appealing because he is the leader of the Green Party and I like some of their values.”

She said Mr Polanski hasn’t convinced her: “I think his priority wouldn’t be around the borough, it would be around leading the Green Party and the politics in Westminster.”

Ms Soetan said she liked Ms Abdi-Wali’s track record in Camden, and also thought the new prime minister was an improvement.

“I like Andy Burnham, I think he’s making some good decisions in parliament. Even if I didn't believe so much in the candidate, I am behind the party right now.”

Rob Wheeler will also vote for Ms Abdi-Wali because he believes she is passionate about the area.

He said the former prime minister was “bogged down” by Brexit and believes Mr Burnham has “got more energy”.

Although he is “Labour till I die”, he also “loves the Green Party” and agrees with their environmental policies.

“My dream would be that they merge with Labour and then Labour would be more concerned about environmental issues.”

Jay Patel, 60, has lived in Camden all his life, and has supported both parties in the past, but says Ms Abdi-Wali will have his vote on Thursday.

Although he was “fed up” with Sir Keir, he says Mr Burnham has “done good for people”.

“He seems to be a sensible person. He's condemned the attacks [on Gaza],” he added.