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New Yorkers will find out who will be their new city leader this Tuesday, in a race that will determine who governs and defends the nation's most populous metropolis at a time when Donald Trump has threatened to deploy military troops to the city.

Against that backdrop, New York has witnessed a race for mayor that has pitted two very different Democratic figures against each other. The election has turned into an acrimonious face-off, marked by alleged racial bias and anti-Muslim sentiment, but it is the ideological divide between the two main contenders that could have significant consequences for how the party performs in next year's midterm elections.

The Progressive Challenger

In the progressive corner is the democratic socialist, the 34-year-old democratic socialist whose rapid ascent and people-powered movement has brought international attention. Representing the old guard is the former governor, the former New York governor now campaigning independently – and benefiting from the backing of wealthy contributors and big business.

With days to go, it is Mamdani, the former longshot who defeated his opponent in the Democratic primary who is firmly installed as the frontrunner. The candidate, who has campaigned on a platform of economic justice and promised to halt rent increases for about two million city residents, has outpaced his rival by double-digits across all surveys taken in the fall, and it is very much the younger man's election to throw away.

A Bitter Contest

However, Cuomo, who stepped down as governor in 2021 amid allegations of misconduct, has made it clear he will battle to the finish, and not necessarily in an fair manner. He has trashed Mamdani's goals as unrealistic, and in the final stretch laughed as a radio host made Islamophobic remarks about Mamdani, who is Muslim. Recently, Cuomo was strongly criticized as racist after sharing an artificial intelligence video that featured a series of racial caricatures and showed his opponent freeing a convicts.

This represents a particularly ugly end to an election that could be critical to the path that the Democratic party, struggling in its reaction to the former president's power moves, takes in the coming years.

National Implications

If Mamdani secures a clear victory, the establishment party leaders who have refused to endorse his campaign will be forced to reckon with a platform that has appealed to voters' anger at inequality, soaring price rises and the political elite. It would be difficult for the Senate leader and Hakeem Jeffries not to embrace at least a portion of Mamdani's progressive proposals about economic justice, given the newcomer has created an excitement within the Democratic ranks arguably not witnessed since the Vermont senator campaigned for the White House in 2016.

However, should the former governor, who had been expected to win easily in the June primary, complete a surprising comeback win, it could cement the party's current model of cautious, uninspiring resistance – a strategy that has angered grassroots members. A New York defeat of Mamdani's progressive, positive message could convince Schumer and Jeffries that the best plan is to stick to the political center – even as polls show the present version of the Democratic party is widely disliked across the country.

Campaign Energy

Residents of New York appear to favor the Mamdani vision. Surveys show that Mamdani supporters are far more enthusiastic about their choice than Cuomo backers, something that has been evident during the race. The candidate's engaging content on digital platforms, his hopeful outlook for the city and his readiness to actually venture out and connect with voters in the city has attracted an force of more than 50,000 volunteers, many of them young or first-time voters.

Personal Attacks

However, the former governor, in his late sixties, continues to fight. And with the risks stacked against him, the former governor has resorted to ugly messaging in recent weeks.

Following extensive launching various attacks at Mamdani to see what might stick, the independent has concentrated on attacking Mamdani directly. He has labelled Mamdani, who was of Ugandan origin to Indian parents, an "radical", and popped up on conservative media for an discussion with a rightwing host, where the candidate claimed 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 radio host said the candidate would “cheer” another 9/11-style incident.

Campaign Dynamics

This strategy echoes much of what Trump, who has sent the national guard to the capital and threatened to do the same to NYC, has said about Mamdani, and perhaps that is expected. A group of billionaire New Yorkers, including some who donated to the Republican in the last presidential race, have pumped millions into trying to elect the independent into office, as other influential figures have pressured Curtis Sliwa to withdraw from the contest.

Candidate Backgrounds

For the Cuomo camp, and his billionaire supporters, are concerned, it should never have come to this point. When Mamdani, one of one hundred fifty state legislators, started his mayoral bid in October 2024, not many had heard of him, and in truth, barely anyone even noticed.

Cuomo, by comparison, eased his way into the contest in this year and became the instant favorite. He was the big beast who seemingly held every edge. The quintessential establishment figure, he had wed a political dynasty member and served in a Democratic presidency. He became New York governor in over a decade ago, 17 years after his father, Mario Cuomo, stepped down from the identical role.

Mamdani, who was elected to the New York state assembly 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 – offer a more positive vision of the future than Cuomo’s pessimistic predictions about “mayhem” and rising criminal activity, and his vow to increase police presence.

Campaign Controversies

Still, the candidate has faced some challenges in recent days, after footage surfaced suggesting him implying the NYPD 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,” Mamdani said in the clip, recorded at a Democratic Socialists of America convention in 2023. Mamdani, a vocal opponent of Israel who has said the country is engaging in atrocities in Gaza, suggested he was questioning cooperative programs between the NYPD and Israeli forces.

Emotional Response

As the race closes, the candidate appears to have won sympathy and support, however, for his reaction to Cuomo’s escalating attacks.

Mamdani responded to Cuomo’s 9/11 remarks in an heartfelt recording. In it, the candidate remembered how, when he first ran for state assembly, a Muslim uncle suggested to him that he did not have to tell people about his religion. It was a lesson, Mamdani said, that many local Muslims had been told “again and again”: “That safety could only be found in the margins of our city. That it is in those hidden spaces 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 beliefs.”

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