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New Yorkers will find out the identity of their new city leader this election day, in a race that will determine who runs and defends the country's most populous metropolis at a time when Donald Trump has threatened to deploy military troops to the city.

In this context, New York has witnessed a mayoral election that has matched two very different Democrats against each other. The election has become an increasingly bitter face-off, laced with accusations of 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 Rising Progressive

On the left side is the democratic socialist, the young democratic socialist whose rapid ascent and people-powered movement has attracted international attention. On the establishment side is Andrew Cuomo, the ex- Democratic New York governor now running as an independent – and enjoying the support of ultra-rich donors and big business.

As the election approaches, it is Mamdani, the one-time underdog who defeated his opponent in the party primary who is firmly installed 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 outpaced his rival by double-digits in every poll taken in the fall, and it is very much the younger man's race to lose.

The Controversial Campaign

However, the former governor, who resigned as the state's leader in 2021 amid accusations of sexual harassment, has stated clearly he will fight to the finish, and not necessarily in an above-the-belt manner. He has trashed his opponent's goals as unachievable, and in the final stretch laughed as a broadcaster made anti-Muslim comments about Mamdani, who is Muslim. Recently, Cuomo was widely condemned as racist after posting an AI-generated ad that featured a slew of racial caricatures and showed Mamdani freeing a group of criminals.

It's been a rather grubby end to an election that could be critical to the path that the Democratic party, floundering in its response to the former president's authoritarian grabs, takes in the coming years.

National Implications

Should the progressive wins convincingly, the establishment party leaders who have declined to support his campaign will be compelled to address a message that has resonated with voters' anger at economic disparity, inflation and the political elite. It would be difficult for Chuck Schumer and the House leader not to embrace at least some of Mamdani's ambitious ideas about economic justice, given the newcomer has created an excitement within the party arguably not seen since Bernie Sanders campaigned for the White House in 2016.

However, if the former governor, who had been expected to sail to victory in the June primary, achieve a remarkable riches-to-rags-to-riches victory, it could cement national Democrats' existing approach of considered, lackluster resistance – a tactic that has infuriated the party base. A NYC defeat of Mamdani's progressive, positive message could persuade party leaders that the best plan is to stick to the political center – even as polls show the present version of the party is widely disliked across the country.

Campaign Energy

Residents of the city 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. Mamdani's snappy videos on social media, his hopeful outlook for New York and his willingness to actually venture out and meet people in the metropolis has drawn an army of over fifty thousand volunteers, many of them youth or new participants.

Personal Attacks

Yet, Cuomo, in his late sixties, continues to fight. And with the stakes stacked against him, the ex-leader has turned to negative campaigning in recent weeks.

After spending months throwing basically everything at his opponent to see what might stick, the independent has narrowed his focus on targeting the candidate directly. He has called 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 claimed New York “will not survive” his opponent as city leader. It hit bottom recently, when the former governor chuckled and said “that’s another problem” after a radio host said the candidate would “cheer” another 9/11-style attack.

Political Landscape

The line of attack echoes much of what the former president, who has deployed the military reserves to Washington DC and threatened to do the same to NYC, has said about Mamdani, and maybe 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 elect the independent into office, as other influential figures have pressured Curtis Sliwa to drop out from the race.

Political Histories

For the his team, and his billionaire supporters, are worried, it should not have reached to this. When Mamdani, one of one hundred fifty state legislators, launched his campaign for mayor in October 2024, not many had known him, and in reality, few even paid attention.

The former governor, by contrast, entered smoothly into the contest in March 2025 and became the instant favorite. He was the political heavyweight who apparently held every edge. The quintessential establishment figure, he had wed a political dynasty member and served in Bill Clinton’s administration. He became New York governor in over a decade ago, seventeen years after his parent, Mario Cuomo, stepped down from the identical role.

Mamdani, who was elected to the state legislature in 2020, does not have the comparable background. But his dedication to providing free buses and affordable child services – along with the rent control promise – present a more positive vision of the future than his opponent's dire warnings about “mayhem” and unfettered crime, and his vow to increase police presence.

Campaign Controversies

Still, Mamdani has faced difficulties in the final phase, after video surfaced suggesting him suggesting the New York police department and the IDF were connected.

“We have to make clear that when the pressure of the NYPD is on your neck, it’s been laced by the IDF,” the candidate said in the clip, recorded at a DSA gathering in recent years. The progressive, a longtime critic of the Israeli government who has said the country is engaging in atrocities in the Palestinian territory, suggested he was questioning joint training exercises between the NYPD and IDF.

Emotional Response

As the race closes, the candidate seems to have gained sympathy and support, however, for his reaction to Cuomo’s increasing rhetoric.

The progressive addressed the independent's terrorism comments in an heartfelt recording. In it, Mamdani remembered how, when he first ran for state assembly, a Muslim uncle advised to him that he did not have to disclose about his Muslim faith. It was a realization, he said, that many Muslim New Yorkers had been told “again and again”: “That security could only be found in the shadows of our community. That it is in those hidden spaces alone where followers of Islam could embrace their full identities, and that if we were to emerge from those seclusion, then it is in those shadows that we must leave our beliefs.”

Addressing the behavior of his opponents, who has alleged Mamd