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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 runs and defends the country's largest city at a moment when Donald Trump has threatened to deploy armed forces to the city.

Against that backdrop, New York has witnessed a race for mayor that has pitted two very different Democrats against one another. The election has become an increasingly bitter face-off, laced with accusations of racial bias and Islamophobia, but it is the political differences between the two main candidates that could have significant consequences for how the party performs in next year's congressional races.

The Progressive Challenger

On the left side is the democratic socialist, the young democratic socialist whose meteoric rise and people-powered movement has brought international attention. Representing the old guard is the former governor, the ex- New York governor now running as an independent – and benefiting from the support 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 solidly positioned as the leading candidate. The candidate, who has campaigned on a agenda of affordability and pledged to freeze rent for about 2 million New Yorkers, has led his rival by significant margins in every poll conducted in October, and it is very much the progressive's election to throw away.

A Bitter Contest

However, the former governor, who stepped down as governor in recent years amid allegations of sexual harassment, has made it clear he will battle to the finish, and not necessarily in an above-the-belt manner. He has criticized Mamdani's objectives as unachievable, and in the final stretch laughed as a radio host made anti-Muslim comments about the candidate, who is Muslim. Two weeks ago, Cuomo was strongly criticized as bigoted after sharing an AI-generated ad that featured a slew of racist stereotypes and showed his opponent releasing a group of criminals.

This represents a particularly ugly end to an election that could be key to the path that the party, floundering in its response to the former president's power moves, adopts in the near future.

Broader Consequences

Should Mamdani secures a clear victory, the party establishment who have refused to endorse his bid will be compelled to address a message that has resonated with Americans' anger at economic disparity, soaring price rises and the political elite. It would be difficult for Chuck Schumer and Hakeem Jeffries not to embrace at least a portion of the candidate's ambitious ideas about affordability, given the fresh face has created an enthusiasm within the Democratic ranks arguably not witnessed since Bernie Sanders ran for president in 2016.

Conversely, if the former governor, who had been predicted to sail to victory in the Democratic primary, achieve a surprising comeback victory, it could reinforce the party's existing approach of cautious, lackluster opposition – a strategy that has angered grassroots members. A New York rejection of Mamdani's progressive, positive message could persuade party leaders that the wisest course is to stick to the center – even as surveys show the present version of the party is widely disliked nationwide.

Campaign Energy

Voters in the city appear to favor the progressive agenda. Surveys show that his backers are much more excited about their choice than his opponent's supporters, something that has been apparent throughout the campaign. Mamdani's engaging content on digital platforms, his optimistic vision for New York and his willingness to actually get out and meet people in the metropolis has attracted an force of more than 50,000 volunteers, many of them youth or new participants.

Negative Tactics

Yet, Cuomo, in his late sixties, continues to fight. And with the risks against him, the ex-leader has turned to ugly messaging in recent weeks.

Following extensive throwing basically everything at his opponent to see what might stick, Cuomo has narrowed his focus on attacking the candidate directly. He has called Mamdani, who was born in Uganda 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 mayor. It hit bottom recently, when the former governor chuckled and said “that’s another problem” after a broadcaster said Mamdani would “cheer” another terrorist incident.

Political Landscape

This strategy mirrors much of what Trump, who has deployed the national guard to Washington DC and threatened to do the same to New York, has said about Mamdani, and perhaps that shouldn’t come as a surprise. A set of billionaire New Yorkers, including some who donated to Trump in the 2024 election, have pumped millions into trying to get the independent into office, as other powerful voices have pressured Curtis Sliwa to drop out from the contest.

Political Histories

For the Cuomo camp, and his wealthy backers, are concerned, it should not have reached to this point. When Mamdani, one of 150 New York state assembly members, launched his campaign for mayor in October 2024, not many had heard of him, and in truth, few even paid attention.

Cuomo, by contrast, eased his way into the contest in March 2025 and became the immediate frontrunner. He was the big beast who seemingly held every edge. The classic political insider, he had wed a political dynasty member and worked in Bill Clinton’s administration. He became New York governor in 2011, 17 years after his father, the former governor, left office from the same position.

Mamdani, who was voted in to the New York state assembly in recently, does not have the comparable background. But his dedication to providing free buses and free childcare – along with the rent control promise – present a more positive vision of the city's direction than Cuomo’s dire warnings about “mayhem” and rising criminal activity, and his promise to hire more police officers.

Recent Challenges

Still, Mamdani has encountered difficulties in recent days, after footage emerged suggesting him implying the NYPD and the Israel Defense Forces were connected.

“We have to make clear that when the pressure of the police is on your throat, it’s been influenced by the Israeli military,” the candidate said in the clip, recorded at a Democratic Socialists of America gathering in 2023. The progressive, a longtime critic of the Israeli government who has said the nation is engaging in atrocities in Gaza, suggested he was questioning cooperative programs between the city police and IDF.

Emotional Response

As the race closes, the candidate appears to have won empathy and backing, however, for his response to his opponent's escalating attacks.

Mamdani responded to Cuomo’s 9/11 remarks in an emotional video. In it, Mamdani remembered how, when he first campaigned for the legislature, a Muslim uncle advised to him that he did not have to disclose about his religion. It was a realization, Mamdani said, that many Muslim New Yorkers had been told “again and again”: “That safety could only be found in the margins of our community. 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 silence that we must leave our beliefs.”

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