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Residents of the Big Apple will learn the identity of their next mayor this Tuesday, in a contest that will determine who governs and defends the nation's largest city at a moment when Donald Trump has vowed to send armed forces to the city.

Against that backdrop, New York has experienced a race for mayor that has matched two very different Democrats against one another. The contest has turned into an acrimonious showdown, laced with alleged racial bias and anti-Muslim sentiment, but it is the political differences between the two main candidates that could have significant consequences for how the Democratic party performs in next year's congressional races.

The Progressive Challenger

In the progressive corner is the democratic socialist, the young progressive candidate whose meteoric rise and grassroots campaign has attracted international attention. On the establishment side is the former governor, the former New York governor now running as an independent – and enjoying the backing of ultra-rich donors and corporations.

With days to go, it is the progressive, the one-time underdog who defeated Cuomo in the Democratic primary who is firmly installed as the leading candidate. Mamdani, who has campaigned on a agenda of affordability and promised to halt rent increases for about two 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.

A Bitter Contest

However, the former governor, who stepped down as governor in 2021 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 trashed his opponent's goals as unrealistic, and in recent days laughed as a broadcaster made anti-Muslim comments about the candidate, who is Muslim. Two weeks ago, the independent was widely condemned as bigoted after sharing an AI-generated ad that featured a slew of racial caricatures and showed Mamdani freeing a convicts.

It's been a particularly ugly conclusion to an race that could be key to the direction that the party, floundering in its reaction to Trump's authoritarian grabs, takes in the near future.

National Implications

If the progressive wins convincingly, the establishment party leaders who have refused to endorse his bid will be forced to reckon with a message that has resonated with voters' 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 affordability, given the fresh face has generated an enthusiasm within the party arguably not witnessed since the Vermont senator campaigned for the White House eight years ago.

However, should Cuomo, who had been predicted to win easily in the Democratic primary, complete a remarkable comeback win, it could reinforce the party's existing approach of considered, uninspiring resistance – a strategy that has angered grassroots members. A NYC rejection of Mamdani's progressive, positive message could persuade party leaders that the wisest course is to remain in the center – even as polls show the present version of the party is deeply unpopular across the country.

Campaign Energy

Voters in 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 throughout the campaign. The candidate's snappy videos on social media, his optimistic vision for the city and his readiness to actually venture out and meet people in the metropolis has attracted an army of over fifty thousand supporters, many of them youth or first-time voters.

Personal Attacks

However, Cuomo, 67, isn't giving up. And with the stakes against him, the ex-leader has turned to ugly messaging in recent weeks.

After spending months throwing basically everything at his opponent to see what might resonate, the independent has narrowed his focus on targeting the candidate directly. He has called Mamdani, who was born in Uganda to South Asian heritage, an “extremist”, and popped up on Fox Business for an discussion with a rightwing host, where Cuomo claimed the city “will not survive” Mamdani as mayor. It hit bottom recently, when Cuomo chuckled and said “that’s another problem” after a radio host said Mamdani would “cheer” another terrorist attack.

Campaign Dynamics

This strategy echoes much of what the former president, who has sent the military reserves to Washington DC and warned to take similar action to NYC, has said about the progressive, and maybe that is expected. A group of billionaire New Yorkers, including some who donated to the Republican in the 2024 election, have pumped millions into trying to get Cuomo into office, as other powerful voices have pressured the Republican candidate to drop out from the race.

Candidate Backgrounds

For the his team, and his wealthy backers, are concerned, it should never have come to this. When Mamdani, one of 150 state legislators, started his mayoral bid in October 2024, not many had known him, and in truth, barely anyone even noticed.

Cuomo, by comparison, 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 quintessential establishment figure, he had married a political dynasty member and served in a Democratic presidency. He became New York governor in 2011, 17 years after his father, Mario Cuomo, left office from the identical role.

Mamdani, who was elected to the state legislature in recently, does not have the same political heritage. But his commitment to providing free buses and free childcare – along with the freeze-the-rent pledge – offer a more positive vision of the city's direction than Cuomo’s pessimistic predictions about “mayhem” and unfettered crime, and his vow to increase police presence.

Campaign Controversies

Nevertheless, the candidate has encountered difficulties in the final phase, after video surfaced appearing to show him implying the New York police department and the Israel Defense Forces were connected.

“We have to make clear that when the boot of the NYPD is on your neck, it’s been laced by the Israeli military,” the candidate said in the recording, recorded at a DSA gathering in 2023. 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 criticizing joint training exercises between the city police and Israeli forces.

Powerful Moment

With the election nearing, Mamdani appears to have won sympathy and support, however, for his reaction to Cuomo’s escalating attacks.

The progressive addressed the independent's 9/11 remarks in an emotional video. In it, the candidate recalled how, when he first ran for state assembly, a Muslim uncle advised to him that he did not have to tell people about his Muslim faith. It was a realization, he said, that many local Muslims had been taught “again and again”: “That safety could only be found in the margins of our community. That it is in those shadows alone where Muslims could express their true selves, and that if we were to emerge from those seclusion, then it is in those silence that we must leave our beliefs.”

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