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Residents of the Big Apple will discover the identity of their new city leader this election day, in a race that will decide who runs and protects the nation's most populous metropolis at a moment when Donald Trump has vowed to send armed forces to the city.

Against that backdrop, New York has witnessed a race for mayor that has matched two very different Democrats against one another. The contest has turned into an increasingly bitter face-off, laced with accusations of racial bias and anti-Muslim sentiment, but it is the political differences between the two main candidates that could have major implications for how the party fares in next year's congressional races.

The Progressive Challenger

On the left side is the democratic socialist, the 34-year-old progressive candidate whose rapid ascent and grassroots campaign has brought global notice. On the establishment side is Andrew Cuomo, the former New York governor now running as an independent – and enjoying the backing of ultra-rich donors and corporations.

As the election approaches, it is Mamdani, the former longshot who defeated Cuomo in the Democratic primary who is firmly installed as the leading candidate. Mamdani, who has run on a platform of affordability and pledged to halt rent increases for about 2 million New Yorkers, has outpaced his rival by double-digits in every poll taken in October, and it is very much the progressive's election to throw away.

The Controversial Campaign

Yet, the former governor, who stepped down as the state's leader in 2021 amid allegations of misconduct, has stated clearly he will fight to the end, and not necessarily in an above-the-belt fashion. He has criticized Mamdani's goals as unrealistic, and in recent days laughed as a radio host made Islamophobic remarks about Mamdani, who is Muslim. Recently, Cuomo was widely condemned as racist after sharing an AI-generated ad that included a series of racial caricatures and showed his opponent freeing a convicts.

This represents a particularly ugly end to an race that could be key to the path that the party, struggling in its response to the former president's authoritarian grabs, takes in the near future.

National Implications

Should Mamdani secures a clear victory, the party establishment who have refused to endorse his bid will be forced to reckon with a message that has resonated with Americans' frustration at inequality, soaring price rises and the political elite. It would be difficult for the Senate leader and the House leader not to adopt at least some of the candidate's ambitious ideas about economic justice, given the newcomer has generated an excitement within the party perhaps not seen since the Vermont senator ran for president in 2016.

Conversely, if the former governor, who had been predicted to sail to victory in the Democratic primary, achieve a remarkable comeback win, it could reinforce the party's existing approach of considered, uninspiring opposition – a tactic that has infuriated grassroots members. A New York defeat of Mamdani's progressive, positive message could persuade Schumer and Jeffries that the wisest course is to stick to the center – even as surveys show the current iteration of the Democratic party is deeply unpopular across the country.

Campaign Energy

Voters in the city seem to prefer the Mamdani vision. Polls show that his backers are much more excited about their choice than Cuomo backers, something that has been evident during the race. The candidate's snappy videos on social media, his hopeful outlook for New York and his readiness to actually venture out and meet people in the city has drawn an army of over fifty thousand volunteers, many of them youth or new participants.

Personal Attacks

Yet, the former governor, 67, continues to fight. And with the risks stacked against him, the ex-leader has turned to negative campaigning in recent weeks.

After spending months throwing basically everything at Mamdani to see what might stick, Cuomo has narrowed his focus on targeting Mamdani personally. He has labelled Mamdani, who was of Ugandan origin to Indian parents, an "radical", and appeared on conservative media for an interview with Maria Bartiromo, where the candidate claimed the city “will not survive” his opponent as city leader. It reached a nadir last week, when the former governor chuckled and said “that’s another problem” after a broadcaster said Mamdani would “cheer” another 9/11-style attack.

Political Landscape

The line of attack echoes much of what the former president, who has sent the national guard to the capital and threatened to take similar action to NYC, has said about Mamdani, and maybe that shouldn’t come as a surprise. A group of billionaire New Yorkers, including some who contributed to Trump in the last presidential race, have pumped millions into trying to elect the independent elected, as other powerful voices have pressured the Republican candidate to withdraw from the contest.

Candidate Backgrounds

As far as the Cuomo camp, and his wealthy backers, are worried, it should never have come to this point. When the assemblyman, one of one hundred fifty New York state assembly members, started his campaign for mayor in October 2024, few had known him, and in truth, few even paid attention.

Cuomo, by comparison, eased his way into the contest in March 2025 and became the instant favorite. He was the political heavyweight who seemingly held all the advantages. The classic political insider, he had married a Kennedy and served in Bill Clinton’s administration. He became New York governor in over a decade ago, 17 years after his parent, the former governor, stepped down from the same position.

Mamdani, who was voted in to the state legislature in recently, does not have the comparable background. But his dedication to providing free buses and free childcare – along with the freeze-the-rent pledge – present a brighter outlook of the city's direction than Cuomo’s pessimistic predictions about “mayhem” and unfettered crime, and his promise to hire more police officers.

Campaign Controversies

Still, Mamdani has faced difficulties in recent days, after footage emerged appearing to show him implying the New York police department and the IDF were connected.

“We have to make clear that when the boot of the NYPD is on your throat, it’s been influenced by the Israeli military,” the candidate said in the recording, recorded at a DSA convention in 2023. The progressive, a vocal opponent of the Israeli government who has said the nation is committing genocide in the Palestinian territory, suggested he was questioning cooperative programs between the city police and Israeli forces.

Powerful Moment

As the race closes, Mamdani appears to have won empathy and backing, however, for his reaction to Cuomo’s increasing rhetoric.

Mamdani addressed Cuomo’s 9/11 remarks in an heartfelt recording. In it, Mamdani recalled how, when he first ran for state assembly, a family member advised to him that he did not have to disclose about his Muslim faith. It was a lesson, Mamdani said, that many local Muslims had been told “again and again”: “That security could only be found in the margins of our city. That it is in those shadows alone where Muslims could embrace their full identities, and that if we were to step out from those shadows, then it is in those silence that we must set aside our beliefs.”

Speaking to the behavior of Cuomo and Sliwa, who has alleged Mamd