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New Yorkers will find out the identity of their new city leader this Tuesday, in a contest that will determine who runs and defends the nation's most populous metropolis at a moment when Donald Trump has threatened to send military troops to the city.

In this context, New York has witnessed a race for mayor that has pitted two very different Democrats against one another. The contest has become an increasingly bitter face-off, marked by accusations of racism and Islamophobia, but it is the ideological divide between the two leading 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 democratic socialist whose meteoric rise and grassroots campaign has attracted international attention. On the establishment side is Andrew Cuomo, the former New York governor now campaigning independently – and enjoying the backing of ultra-rich donors and big business.

With days to go, it is Mamdani, the former longshot who beat his opponent in the Democratic primary who is firmly installed as the frontrunner. Mamdani, who has run on a platform of economic justice and promised to freeze rent for about 2 million city residents, has outpaced Cuomo by double-digits across all surveys taken in October, and it is very much the younger man's race to throw away.

A Bitter Contest

However, Cuomo, who stepped down as the state's leader in recent years amid allegations of sexual harassment, has stated clearly he will battle to the end, and not necessarily in an fair fashion. He has criticized his opponent's goals as unrealistic, and in recent days laughed as a radio host made Islamophobic remarks about the candidate, who is Muslim. Recently, Cuomo was strongly criticized as racist after sharing an AI-generated ad that included a slew 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 reaction to the former president's authoritarian grabs, takes in the coming years.

Broader Consequences

If the progressive wins convincingly, the party establishment who have declined to support his campaign will be forced to reckon with a message that has resonated with Americans' frustration at economic disparity, soaring price rises and the establishment. It would be difficult for Chuck Schumer and the House leader not to adopt at least some of the candidate's progressive proposals about economic justice, given the fresh face has generated an excitement within the party arguably not seen since the Vermont senator campaigned for the White House eight years ago.

However, if Cuomo, who had been expected to win easily in the June primary, complete a surprising comeback victory, it could reinforce the party's existing approach of cautious, uninspiring resistance – a tactic that has infuriated the party base. A New York defeat of the progressive's progressive, positive message could persuade party leaders that the best plan is to stick to the political center – even as polls show the current iteration of the Democratic party is widely disliked across the country.

Voter Enthusiasm

Residents of the city seem to prefer the Mamdani vision. Surveys show that Mamdani supporters are far more enthusiastic about their choice than Cuomo backers, something that has been apparent during the race. The candidate's snappy videos on social media, his hopeful outlook for New York and his willingness to actually get out and connect with voters in the city has attracted an army of over fifty thousand volunteers, many of them youth or first-time voters.

Negative Tactics

However, the former governor, 67, isn't giving up. And with the risks against him, the former governor has turned to ugly messaging in the final days.

Following extensive launching various attacks at Mamdani to see what might resonate, the independent has concentrated on attacking the candidate personally. He has called his rival, who was of Ugandan origin to South Asian heritage, an “extremist”, and appeared on Fox Business for an discussion with a rightwing host, where the candidate asserted New York “will not survive” his opponent as city leader. It reached a nadir recently, when Cuomo laughed along and said “that’s another problem” after a broadcaster said the candidate would “cheer” another terrorist attack.

Campaign Dynamics

The line of attack mirrors much of what the former president, who has deployed the military reserves to Washington DC and warned to take similar action to New York, has said about the progressive, and perhaps that shouldn’t come as a surprise. A group of billionaire New Yorkers, including some who donated to the Republican in the 2024 election, have invested heavily into trying to get the independent elected, as other influential figures have pressured Curtis Sliwa to withdraw from the race.

Candidate Backgrounds

For the Cuomo camp, and his billionaire supporters, are concerned, it should never have come to this. When the assemblyman, one of one hundred fifty New York state assembly members, started his mayoral bid in last year, few had known him, and in truth, few even paid attention.

The former governor, by comparison, entered smoothly into the contest in March 2025 and became the immediate frontrunner. He was the big beast who apparently held every edge. The quintessential establishment figure, he had married a political dynasty member and worked in Bill Clinton’s administration. He became New York governor in over a decade ago, seventeen years after his father, the former governor, stepped down from the same position.

The progressive, who was voted in to the state legislature in 2020, does not have the comparable background. But his commitment to providing no-cost transit and free childcare – along with the rent control promise – present a more positive vision of the city's direction than his opponent's dire warnings about “mayhem” and unfettered crime, and his vow to hire more police officers.

Recent Challenges

Still, the candidate has faced some challenges in recent days, after footage surfaced appearing to show him implying the New York police department and the IDF were intertwined.

“We have to make clear that when the pressure of the NYPD is on your neck, it’s been influenced by the Israeli military,” Mamdani said in the clip, filmed at a Democratic Socialists of America gathering in 2023. Mamdani, a vocal opponent of the Israeli government who has said the country is committing genocide in Gaza, suggested he was questioning cooperative programs between the city police and Israeli forces.

Emotional Response

With the election nearing, the candidate appears to have won empathy and backing, however, for his reaction to his opponent's increasing rhetoric.

Mamdani addressed Cuomo’s terrorism comments in an heartfelt recording. In it, Mamdani remembered how, when he first campaigned for state assembly, a Muslim uncle advised to him that he did not have to disclose about his Muslim faith. It was a lesson, he 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 true selves, and that if we were to step out from those shadows, then it is in those shadows that we must set aside our beliefs.”

Addressing the actions of his opponents, who has claimed Mamd