Zohran Mamdani, the 34-year-old democratic socialist whose campaign was powered by youthful energy, a surge of new voters, and a promise of unconventional change, completed his yearlong journey with a decisive victory — to be elected the 111th mayor of New York City and the first Muslim to hold the office.

Mamdani’s victory, with just over 50% of the vote, was made possible by a splintered opposition. Former Governor Andrew Cuomo, running as an independent after his bitter primary loss, hoped for a comeback by highlighting Mamdani’s harsh criticism of law enforcement and of Israel, rallying much of the city’s Jewish and older Democratic voters after Mayor Eric Adams withdrew.

But Cuomo’s lingering unpopularity — he resigned as governor in 2021 after numerous women accused him of sexual harassment, allegations he denied — combined with his campaign’s lackluster strategy and Republican nominee Curtis Sliwa’s continued presence in the race, helped clear the path for Mamdani to prevail.

Voting turnout surged past two million, with early voting also at a record high.

Cuomo received about 41% of the vote, according to unofficial results, higher than the 36% he got in the June primary.

A campaign that redefined Jewish politics in New York

Democratic nominees for mayor typically win in November — with about two-thirds of New York voters registered as Democrats. But Mamdani was not the typical Democratic frontrunner in the city with the largest Jewish population outside of Israel. An outspoken and unapologetic critic of Israel and defender of Palestinians, Mamdani’s stance on the conflict in Gaza resonated with a majority of voters, according to public opinion polls.

His campaign roiled the Jewish community more than any mayoral contest in recent memory. Rabbis across the country weighed in on Mamdani’s candidacy. More than 850 rabbis and cantors signed a letter opposing Mamdani and the “political normalization” of anti-Zionism. Other prominent rabbis, who refused to issue political endorsements, called out Mamdani’s rhetoric but cautioned against the potential consequences of an increasingly divided Jewish community.

Felice Schachter, an Upper West Side resident who has been involved with the Facebook group Mothers Against College Antisemitism, is planning her possible exit from the city after the votes are counted. “If God forbid, Mamdani wins, I’m leaving here. I’m moving. I don’t think it’s safe for Jews,” she said at the Ziegfeld Ballroom in midtown Manhattan at the watch party for Cuomo.

“I already spent time in Long Beach. I have a real estate broker. I got my pre-approval. I’m ready to go. My real estate broker knows tomorrow, I said, ‘If Mamdani wins, call Wednesday morning. I’m gonna have an offer in by December 1.’”

Mamdani is the first major party nominee to pledge to publicly back the movement to boycott Israel, which some in the pro-Israel community see as an assault on the legitimacy of the Jewish state’s existence. He also said he would not visit Israel, breaking with a tradition upheld by mayors since 1951 to show solidarity with Jewish constituents at home.

Mamdani promised to end the city’s half-century practice of investing millions in Israeli government debt securities and said he would dissolve a council Mayor Eric Adams created in May aimed at strengthening the U.S.-Israel economic ties. Recently, he said he would reassess a partnership between the Roosevelt Island campus of Cornell University and the Technion-Israel Institute of Technology because of the Israeli university’s ties to the IDF.

The war in Gaza was also a flashpoint in the campaign, with Mamdani tapping into the anger over the loss of life and the dire humanitarian crisis.

Mamdani attended some of the protests just after the Oct. 7, 2023, attack by Hamas and led a hunger strike outside the White House to call for a permanent ceasefire in November 2023. Though he condemned Hamas’ attack as a “horrific war crime,” he defended the campus protests, some of which included offensive displays or antisemitic statements, and he criticized the Adams administration for its crackdown on them.

Mamdani faced the most scrutiny for refusing to outright condemn the slogan “globalize the intifada,” for saying he doesn’t recognize Israel as a Jewish state, and for a newly surfaced 2023 video in which he said that the New York Police Department’s boots are “laced by the IDF.”

He also clashed with the Anti-Defamation League, saying the organization does not speak for New York Jews’ concerns.

Mamdani enjoyed support among progressive and younger Jews who see his criticism of Israel as compatible with Jewish values of justice. He was also boosted by local Jewish elected officials such as Ruth Messinger and embraced by prominent liberal rabbis.

A letter signed by more than 250 rabbis and cantors stated, “we recognize that candidate Zohran Mamdani’s support for Palestinian self-determination stems not from hate, but from his deep moral convictions.” It also defended attacks against his Muslim identity, arguing, “Jewish safety cannot be built on Muslim vulnerability, nor can we combat hate against our community while turning away from hate against our neighbors.”

Mamdani’s extended olive branch and coalition 

Despite the backlash and the opposition, the son of Ugandan and Indian immigrants embarked on an unprecedented outreach effort to a broad spectrum of Jewish New Yorkers across the city’s five boroughs, even finding allies in segments of the Hasidic community.

He attended High Holiday services at Kolot Chaiyeinu and the Lab/Shul, he addressed members of Congregation Beth Elohim for a community conversation earlier this month, and visited Hasidic leaders in South Williamsburg during Sukkot. On the second anniversary of Oct. 7, he appeared at an Israelis for Peace vigil alongside hostage families. Mamdani also recently published an open letter in Hasidic Yiddish, outlining his plans to combat antisemitism and advance his affordability agenda, and gave an interview to a popular Yiddish magazine, Der Moment.

In public appearances, he highlighted conversations he had with Jewish New Yorkers, in which he listened to their concerns and expressed solidarity with their struggle amid rising antisemitism.

Mamdani reassured the community that he would increase police protection outside houses of worship and Jewish institutions and invest in hate crime prevention programs. He also vowed to retain police commissioner Jessica Tisch, who is Jewish, and said he would use a city curriculum in public schools that teaches about Jewish Americans, even as it contradicts his own position on Israel. He also assured liberal Zionists that support for Israel would not be a litmus test for serving in his administration.

The road ahead 

In his primary victory speech, Mamdani promised, if elected, to govern for every New Yorker, “including Jewish New Yorkers,” and those who didn’t vote for him. He’s expected to echo that sentiment in a victory speech at the Brooklyn Paramount Theater.

Building his administration and governing will test whether the promise of inclusion can overcome the scars of the campaign.

Jewish leaders will be closely monitoring to see how Mamdani reacts to the first antisemitic incident under his watch and whether he will move to implement his boycott and divestment agenda across city agencies.

There are also open questions about whether activists critical of Israel and with troubling pasts will fill senior roles at City Hall, and who will have a seat at the table when critical issues impacting the community are discussed.

Business and law enforcement leaders are bracing for his proposals to redirect police funding toward housing and mental-health programs and are unsure how his budget priorities will impact the economy.

A check on the mayor 

Even as he takes office with a clear mandate, Mamdani faces a complex political landscape filled with powerful Democrats who did not endorse him and could act as a check on his more controversial ambitions in a city of 8.5 million with deep Jewish roots and global connections.

Senate Majority Leader Chuck Schumer and Senator Kirsten Gillibrand, both of whom pointedly stayed neutral in the mayoral race, could be persuaded to speak out if Mamdani’s policies threaten to alienate the city from federal partners or jeopardize cooperation with Israel.

Rep. Dan Goldman, Councilwoman Julie Menin — who is running to become City Council Speaker in January — and former Comptroller Scott Stringer, all of whom withheld their support, could be part of an influential bloc of Jewish voices demanding accountability and moderation from City Hall.

Comptroller-elect Mark Levine, a key ally who campaigned with Mamdani but has publicly vowed to reinvest in Israel Bonds and use his platform to speak out for Israel, could become both a bridge and a brake on the administration. If Levine follows through on his promises and the mayor pursues divestment, a public clash between the two men could be one of the defining political dramas of the new administration.

For President Donald Trump, who endorsed Cuomo at the last minute, and New York Republicans, Mamdani’s win was expected to be a political gift. GOP officials intend to highlight the election as proof that Democrats have lost the center and use it to rally Jewish voters in next year’s gubernatorial race against incumbent Gov. Kathy Hochul. Rep. Elise Stefanik, the chair of the House Republican Leadership, who earned plaudits in the pro-Israel community after confronting the presidents of Harvard, MIT, and the University of Pennsylvania over campus antisemitism, is expected to launch her campaign for governor in the near future.

Hannah Feuer contributed reporting.

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