NEW YORK (AP) 鈥� Not long ago, New York City Mayor was demonized by leaders of both political parties. On Thursday night, the 34-year-old democratic socialist was celebrated as a political force, the face of the region’s sports renaissance, even the leader of 鈥淢amdanistan.”
In a rally with , I-Vt., that drew thousands to a Brooklyn theater, the emboldened mayor delivered a fiery message to Democratic leaders in Washington 鈥� and even those considering 2028 presidential bids 鈥� as he worked to elevate a slate of likeminded candidates in Tuesday’s New York primaries.
鈥淧eople often ask me what I think of the state of the Democratic Party. This slate here today is our answer,” Mamdani declared. “The Democratic Party must change.鈥�
鈥淭he party of the past will not be what leads us into the future. We need a Democratic Party with backbone.”
He shared the stage with three congressional candidates, including two running against Democratic incumbents. All three identify, or have identified, as democratic socialists. They promised to 鈥渁bolish ICE,鈥� condemned the 鈥済enocide鈥� in Israel and vowed to “tax the rich” if elected.
The collection of congressional candidates he鈥檚 backing represent a political gamble for Mamdani, whose picks may not win Tuesday, and a potential headache for Democratic leaders, who fear that Mamdani鈥檚 allies may push the party too far left. It’s the latest way Mamdani is testing the limits of his newfound political muscle, even if it means challenging his own party鈥檚 leadership.
Sanders cheered him on Thursday night, noting that democratic socialists fighting for working-class voters like Mamdani have across the country .
鈥淭he politics and the policies of the democratic establishment are no longer good enough,鈥� Sanders charged. 鈥淚n this dangerous and unprecedented moment in American history, tinkering around the edges just won鈥檛 work.鈥�
The Mamdani slate
Establishment Democrats are not pleased with the mayor’s decisions.
Mamdani endorsed political organizer Darializa Avila Chevalier over Rep. Adriano Espaillat, the chairman of the Congressional Hispanic Caucus, in New York’s 13th District, which includes parts of upper Manhattan and the Bronx.
Mamdani is also backing former New York City Comptroller Brad Lander, who is running against incumbent Rep. Dan Goldman in New York’s 10th District. And in New York’s 7th, he’s supporting democratic socialist state Assembly Member Claire Valdez against outgoing Rep. Nydia Velazquez鈥檚 handpicked successor.
All three congressional candidates stood arm-in-arm with the mayor Thursday and spoke from a podium emblazoned with the sign 鈥淥ur team, our year.鈥�
鈥淩ight now there鈥檚 really mass dissatisfaction with the way the party leadership has been operating and not standing up strongly enough to Trump,鈥� Valdez told The Associated Press before the rally, where she promised to 鈥淔ree Palestine鈥� and 鈥渁bolish ICE.鈥�
She said she hopes to 鈥渂ring a partner to Zohran to Washington.鈥�
Valdez’s primary opponent, Brooklyn Borough President Antonio Reynoso, said he feels like the underdog in the race, even though he was endorsed by the outgoing incumbent. He said Mamdani 鈥渉as a celebrity status that we haven鈥檛 seen the likes of since I鈥檝e been alive.鈥�
鈥淗e鈥檚 going to be our champion for the foreseeable future and he鈥檚 doing a great job, and when he says that he鈥檚 endorsing someone, it matters,鈥� Reynoso said in an interview. 鈥淚 believe that this community has seen me work, they know I鈥檓 a progressive champion, and in any other circumstance I would be a favorite to win this race, but I鈥檓 not because he has tipped the scale.鈥�
The candidates are largely aligned on the biggest issues, although there are modest differences.
in Gaza has featured heavily among the Mamdani slate, with Lander, Valdez and Avila Chevalier casting their Democratic opponents as too soft on Israel. The mayor鈥檚 candidates also sought to replicate much of the platform that sent him to City Hall, focusing on the city鈥檚 high cost of living and framing themselves as fresh faces not beholden to powerful business interests.
Avila Chevalier went after Espaillat at Thursday鈥檚 rally for accepting major donations from real estate developers and Wall Street.
鈥淵ou cannot take working people for granted. And you cannot outspend a movement whose time has come,鈥� she said. 鈥淲e are done being ignored.鈥�
The view from Washington
On Capitol Hill, Democrats are pleasantly surprised that Mamdani has become less of a political liability for the party in swing district seats than they once feared.
But Mamdani鈥檚 endorsements have aggravated intraparty fissures, especially among moderates who worry that Mamdani’s far-left brand may eventually tarnish the entire party.
And House Minority Leader , a fellow New Yorker, has tried to push back against the Mamdani-backed democratic socialist challengers, endorsing and campaigning for the embattled incumbents in a proxy fight with the mayor.
But Jeffries and Mamdani have opted to wrestle only in primaries rather than bicker publicly and feed into GOP narratives of Democratic disarray.
鈥淒emocrats must understand, and both the leader and Mamdani appreciate this, how to yell in areas where we agree and whisper in areas where we diverge,鈥� said Antjuan Seawright, a Democratic strategist who works with House Democrats.
For now, Jeffries’ allies acknowledge that Mamdani has energized Democratic voters and may be able to reach some Americans who have checked out of the political process. They also prefer that Mamdani is hyper-focused on New York City鈥檚 governance rather than traveling across the country.
And yet Mamdani made clear Thursday that he wants his message to be heard nationally.
He referenced the Democratic Party’s 2028 presidential nomination contest, saying it begins Tuesday when New York Democrats pick their general election nominees.
鈥淔or far too long our party has seen its job as managing decline instead of delivering material change for working people,鈥� Mamdani said. 鈥淭hat old way of thinking will lose on Tuesday. And frankly it will lose in South Carolina and New Hampshire.鈥�
Meanwhile, Republicans plan to elevate Mamdani’s profile as well.
The GOP hasn’t made Mamdani a central feature of its broader national messaging as it once threatened, but Republican operatives have sought to link Mamdani to Democratic House candidates in swing districts across California, Colorado and Wisconsin. They also believe the specter of the New York City mayor will loom large in pivotal House races in New York and New Jersey.
The Republican bet is that vulnerable Democrats cannot afford to break with Mamdani too cleanly for fear of alienating progressive voters, even as they cast him as a radical.
鈥淶ohran Mamdani鈥檚 socialist brand is as toxic as it comes,鈥� said Mike Marinella, a spokesperson for the National Republican Congressional Committee, House Republicans鈥� campaign arm. 鈥淎nd during a time when Democrats don鈥檛 have a leader or a message, he鈥檚 exactly the kind of bogeyman we can use against Democrats to truly show who is leading their party and the crazy policies they all support.鈥�
Sanders’ senior adviser Faiz Shakir encouraged the GOP to try.
He said 鈥渢he crowd goes nuts鈥� when Sanders mentions Mamdani in almost every speech as he tours the nation rallying voters ahead of the midterms.
鈥淗e鈥檚 seeing that opportunity 鈥� that we can radically change the Democratic Party,鈥� Shakir said of Mamdani, whom he described as a friend. 鈥淗e certainly is not a political liability.鈥�
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Brown reported in Washington.
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