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Residents of the Big Apple will learn the identity of their new city leader this election day, in a race that will determine who governs and protects the nation's most populous metropolis at a moment when the former president has vowed to deploy armed forces to the city.

Against that backdrop, New York has witnessed a mayoral election that has pitted two very different Democrats against each other. The contest has become an acrimonious showdown, marked by alleged racism and Islamophobia, but it is the political differences between the two main candidates that could have major implications for how the Democratic party performs in next year's congressional races.

The Progressive Challenger

On the left side is the democratic socialist, the young progressive candidate whose meteoric rise and grassroots campaign has attracted international attention. On the establishment side is Andrew Cuomo, the ex- Democratic New York governor now campaigning independently – and enjoying the backing of wealthy contributors and big business.

As the election approaches, it is Mamdani, the one-time underdog who beat his opponent in the Democratic primary who is solidly positioned as the frontrunner. The candidate, who has run on a platform of economic justice and pledged to halt rent increases for about 2 million city residents, has led his rival by double-digits in every poll conducted in October, and it is very much the progressive's election to throw away.

A Bitter Contest

However, Cuomo, who resigned as governor in recent years amid allegations of misconduct, has made it clear he will battle to the end, and not necessarily in an fair fashion. He has criticized Mamdani's goals as unrealistic, and in the final stretch laughed as a broadcaster made Islamophobic remarks about the candidate, who is a Muslim. Two weeks ago, the independent was strongly criticized as racist after posting an artificial intelligence video that featured a slew of racial caricatures and showed his opponent freeing a convicts.

It's been a particularly ugly end to an race that could be critical to the path that the party, struggling in its reaction to Trump's power moves, takes in the coming years.

Broader Consequences

If 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 voters' anger at inequality, inflation and the establishment. It would be difficult for Chuck Schumer and the House leader not to adopt at least a portion of Mamdani's progressive proposals about economic justice, given the fresh face has generated an excitement within the party arguably not witnessed since the Vermont senator ran for president eight years ago.

However, should Cuomo, who had been expected to sail to victory in the June primary, achieve a remarkable comeback victory, it could cement national Democrats' existing approach of cautious, uninspiring opposition – a tactic that has infuriated the party base. A New York rejection of the progressive's optimistic platform could persuade party leaders that the best plan is to stick to the political center – even as surveys show the current iteration of the party is deeply unpopular nationwide.

Campaign Energy

Residents of New York appear to favor the Mamdani vision. Polls show that his backers are far more enthusiastic 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 the city and his readiness to actually get out and connect with voters in the metropolis has drawn an army of more than 50,000 volunteers, many of them young or new participants.

Negative Tactics

However, the former governor, in his late sixties, continues to fight. And with the stakes stacked against him, the former governor has resorted to negative campaigning in recent weeks.

After spending months launching various attacks at Mamdani to see what might resonate, Cuomo has narrowed his focus on targeting the candidate directly. He has called Mamdani, who was born in Uganda to South Asian heritage, an "radical", and popped up on Fox Business for an interview with a rightwing host, where Cuomo asserted the city “will not survive” Mamdani as mayor. It reached a nadir recently, when Cuomo chuckled and said “that’s another problem” after a broadcaster said the candidate would “cheer” another 9/11-style incident.

Campaign Dynamics

The line of attack echoes much of what Trump, who has sent the military reserves to Washington DC and threatened to do the same to NYC, has said about the progressive, and maybe that shouldn’t come as a surprise. A group of wealthy residents, including some who contributed to Trump in the 2024 election, have pumped millions into trying to elect the independent elected, as other powerful voices have pressured the Republican candidate to withdraw from the contest.

Political Histories

For the his team, and his wealthy backers, are concerned, it should not have reached to this point. When Mamdani, one of one hundred fifty New York state assembly members, launched his campaign for mayor in last year, few had known him, and in reality, few even noticed.

The former governor, by contrast, entered smoothly into the race in March 2025 and became the instant favorite. He was the political heavyweight who apparently held every edge. The quintessential political insider, he had wed a Kennedy and served in Bill Clinton’s administration. He assumed office as the state's leader in 2011, 17 years after his parent, Mario Cuomo, left office from the same position.

Mamdani, who was elected to the state legislature in recently, does not have the comparable background. But his commitment to providing no-cost transit and free childcare – along with the freeze-the-rent pledge – present a more positive vision of the future than his opponent's pessimistic predictions about “mayhem” and rising criminal activity, and his vow to hire more police officers.

Recent Challenges

Nevertheless, the candidate has encountered difficulties in the final phase, after footage surfaced suggesting him suggesting the NYPD and the IDF were intertwined.

“We have to make clear that when the pressure of the NYPD is on your neck, it’s been laced by the Israeli military,” Mamdani said in the recording, filmed at a Democratic Socialists of America gathering in recent years. 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 IDF.

Emotional Response

As the race closes, the candidate seems to have gained empathy and backing, however, for his reaction to his opponent's increasing rhetoric.

Mamdani addressed Cuomo’s terrorism comments in an emotional video. In it, Mamdani recalled how, when he first ran for the legislature, a family member advised to him that he did not have to tell people about his religion. It was a lesson, Mamdani said, that many Muslim New Yorkers had been taught “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 emerge from those shadows, then it is in those shadows that we must leave our faith.”

Speaking to the actions of Cuomo and Sliwa, who has claimed Mamd