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New Yorkers will find out the identity of their new city leader this Tuesday, in a contest that will decide who governs and protects the country's most populous metropolis at a time when the former president has threatened to deploy military troops to the city.

Against that backdrop, New York has witnessed a race for mayor that has matched two very different Democrats against each other. The election has become an increasingly bitter face-off, laced with alleged racial bias and anti-Muslim sentiment, but it is the political differences between the two leading candidates that could have major implications for how the Democratic party fares in next year's congressional races.

The Progressive Challenger

On the left side is the democratic socialist, the young democratic socialist whose rapid ascent and people-powered movement has attracted international attention. Representing the old guard is Andrew Cuomo, the ex- New York governor now running as an independent – and benefiting from the backing of wealthy contributors and big business.

With days to go, it is the progressive, the former longshot who defeated his opponent in the party primary who is solidly positioned as the frontrunner. Mamdani, who has run on a platform of affordability and promised to halt rent increases for about two million New Yorkers, has led Cuomo by double-digits in every poll taken in October, and it is very much the younger man's race to lose.

A Bitter Contest

However, Cuomo, who stepped down as governor in 2021 amid allegations of sexual harassment, has made it clear he will battle to the end, and not necessarily in an above-the-belt manner. He has criticized Mamdani's goals as unachievable, and in recent days laughed as a broadcaster made Islamophobic remarks about the candidate, who is Muslim. Two weeks ago, Cuomo was widely condemned as bigoted after sharing an artificial intelligence video that featured a series of racial caricatures and showed Mamdani releasing a group of criminals.

It's been a particularly ugly end to an election that could be key to the path that the party, floundering in its reaction to the former president's authoritarian grabs, adopts in the near future.

National Implications

If the progressive wins convincingly, the party establishment who have refused to endorse his campaign will be forced to reckon with a message that has appealed to Americans' frustration at inequality, inflation and the establishment. It would be difficult for the Senate leader and Hakeem Jeffries not to embrace at least some of Mamdani's ambitious ideas about economic justice, given the newcomer has generated an enthusiasm within the Democratic ranks arguably not seen since the Vermont senator campaigned for the White House eight years ago.

However, if Cuomo, who had been predicted to win easily in the June primary, complete a surprising comeback win, it could cement national Democrats' existing approach of cautious, uninspiring opposition – a strategy that has angered the party base. A NYC defeat of Mamdani's optimistic platform could persuade party leaders that the wisest course is to stick to the political center – even as polls show the present version of the party is widely disliked nationwide.

Voter Enthusiasm

Voters in the city seem to prefer the Mamdani vision. Surveys show that his backers are far more enthusiastic about their candidate than Cuomo backers, something that has been apparent throughout the campaign. The candidate's engaging content on social media, his optimistic vision for New York and his readiness to actually get out and connect with voters in the city has attracted an force of more than 50,000 supporters, many of them young or new participants.

Negative Tactics

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

Following extensive throwing basically everything at Mamdani to see what might resonate, Cuomo has narrowed his focus on attacking Mamdani directly. He has labelled Mamdani, who was of Ugandan origin to Indian parents, an "radical", and popped up on Fox Business for an interview with a rightwing host, where the candidate asserted New York “will not survive” Mamdani as city leader. It reached a nadir recently, when Cuomo laughed along and said “that’s another problem” after a broadcaster said Mamdani would “cheer” another terrorist incident.

Political Landscape

This strategy echoes much of what Trump, who has sent the national guard to Washington DC and threatened to take similar action to New York, has said about Mamdani, and perhaps that is expected. A group of wealthy residents, including some who donated to the Republican in the last presidential race, have pumped millions into trying to get Cuomo into office, as other influential figures have pressured the Republican candidate to withdraw from the contest.

Political Histories

As far as the his team, and his billionaire supporters, are worried, it should not have reached to this point. When Mamdani, one of 150 state legislators, launched his campaign for mayor in October 2024, not many had known him, and in truth, barely anyone even noticed.

Cuomo, by contrast, entered smoothly into the race in March 2025 and became the immediate frontrunner. He was the political heavyweight who apparently held all the advantages. The classic political insider, he had married a political dynasty member and served in Bill Clinton’s administration. He became the state's leader in 2011, 17 years after his father, Mario Cuomo, stepped down from the identical role.

The progressive, who was elected to the state legislature in recently, does not have the same political heritage. But his dedication to providing free buses and affordable child services – along with the rent control promise – present a brighter outlook of the future than his opponent's pessimistic predictions about “mayhem” and rising criminal activity, and his vow to hire more police officers.

Campaign Controversies

Nevertheless, the candidate has faced some challenges in recent days, after video surfaced appearing to show him suggesting the New York police department and the Israel Defense Forces were intertwined.

“We have to make clear that when the pressure of the NYPD is on your throat, it’s been influenced by the Israeli military,” the candidate said in the clip, filmed at a Democratic Socialists of America convention in recent years. The progressive, a vocal opponent of the Israeli government who has said the country is engaging in atrocities in Gaza, indicated he was questioning cooperative programs between the NYPD and Israeli forces.

Powerful Moment

As the race closes, Mamdani appears to have won sympathy and support, however, for his response to his opponent's increasing rhetoric.

Mamdani addressed Cuomo’s terrorism comments in an heartfelt recording. In it, Mamdani remembered how, when he first ran for the legislature, a family member suggested to him that he did not have to disclose about his Muslim faith. It was a lesson, he said, that many Muslim New Yorkers had been told “again and again”: “That security could only be found in the margins of our community. That it is in those hidden spaces alone where Muslims could express their full identities, and that if we were to step out from those seclusion, then it is in those silence that we must set aside our faith.”

Addressing the actions of Cuomo and Sliwa, who has claimed Mamd