Mamdani-backed socialist congressional nominee arrested at anti-Netanyahu protest near UN

By Alex Tanzer, 
updated on September 25, 2026

Darializa Avila Chevalier, the 32-year-old Democratic Socialists of America member who won New York's 13th Congressional District primary in June, was arrested Thursday while blocking a Manhattan roadway during protests against Israeli Prime Minister Benjamin Netanyahu's address to the United Nations General Assembly.

Police moved in at the corner of 1st Avenue and 39th Street after roughly 250 demonstrators gathered near the UN complex and a group refused orders to clear the road. Fox News Digital reported that between 80 and 100 protesters were ultimately arrested, including Avila Chevalier, New York City Council members Chi Ossé and Alexa Avilés, and, according to the Daily Mail, actress Susan Sarandon, who was described as detained.

Avila Chevalier's campaign posted on social media Thursday afternoon framing the arrest as an act of conscience. The post called for an end to U.S. arms transfers to Israel and accused the federal government of prioritizing military aid over domestic needs.

A congressional candidate who built her brand on protest

Avila Chevalier is not a typical first-time nominee. She defeated five-term incumbent Rep. Adriano Espaillat in the June Democratic primary for the heavily Democratic 13th District, which covers Upper Manhattan and parts of the Bronx. She ran as a member of the Democratic Socialists of America and received backing from the DSA's New York City chapter.

Her activist résumé predates the campaign. She has said she helped launch Columbia University Apartheid Divest's boycott, divestment, and sanctions campaign, the same group, known as CUAD, that drew scrutiny for social media posts including "Death to America" and a call for the "eradication of Western civilization," according to prior Fox News Digital reporting.

New York City Mayor Zohran Mamdani endorsed Avila Chevalier in late May during an appearance on MS NOW, praising what he called her commitment to working-class New Yorkers and saying he looked forward to fighting alongside her on an affordability agenda. Mamdani, himself a self-described socialist, has previously promised to arrest Netanyahu if the Israeli prime minister set foot in New York, a pledge he later admitted the city had no legal authority to carry out.

That endorsement placed Mamdani's political brand squarely behind a candidate whose public record consists largely of protest organizing and anti-Israel activism. Israel's ambassador has accused Mamdani of "sowing chaos" ahead of Netanyahu's UN appearance.

Avila Chevalier's campaign celebrated the arrest within hours

The campaign's social media account wasted no time turning the arrest into a fundraising and messaging moment. The post from @DarializaforNY read:

"Darializa was just arrested while peacefully protesting Netanyahu's speech at the United Nations. Our government has unlimited funds to arm a genocide against Palestinians but tells us there's nothing left to feed and house our own people. Stop arming Israel!"

The word "genocide" in that post is the campaign's characterization of Israel's military operations, a term Israel and its allies reject. But the framing tells you where Avila Chevalier intends to position herself if she reaches Congress: well to the left of even the progressive wing's usual comfort zone on foreign policy.

Bloomberg reported a separate statement from Avila Chevalier declaring that "Netanyahu belongs at the Hague, not in the streets of New York City, and certainly not addressing the United Nations General Assembly." The International Criminal Court in The Hague has issued an arrest warrant for Netanyahu, a warrant the United States does not enforce.

Avila Chevalier is hardly the only Mamdani-aligned candidate with a protest arrest record. The Washington Examiner reported that Illapa Sairitupac, a socialist activist running for the New York State Assembly's 65th District covering Chinatown and Lower Manhattan, has been arrested at least twice at protests and also received an endorsement from Mamdani. A pattern is forming: the mayor is building a bench of candidates whose political credentials begin and end with street-level confrontation.

NYPD stayed quiet while elected officials sat in the street

Fox News Digital reached out to both the NYPD and Avila Chevalier's campaign for comment. The department directed the outlet to its public information phone line and declined to provide additional details. The campaign did not respond. No specific charges against any of the arrestees have been disclosed.

That silence leaves basic questions unanswered. Were the roughly 80 to 100 people arrested charged with disorderly conduct, obstruction, or something else? Were they released on their own recognizance? The distinction between "arrested", the term used for Avila Chevalier, Ossé, and Avilés, and "detained," the word applied to Sarandon, went unexplained.

What is clear is that sitting elected officials and a major-party congressional nominee deliberately blocked a public roadway near a high-security international event, dared police to act, and then used the resulting arrest as a press release. The protest was not spontaneous. The arrest was not accidental. And the political utility was immediate.

Mamdani's broader political trajectory gives context to why he keeps endorsing candidates cut from this cloth. He has drawn controversy for his conduct at a 9/11 Memorial event and has positioned himself as a national figure on the progressive left, attracting attention from figures like Kamala Harris as 2028 primary maneuvering begins.

His administration has also sued to block Trump administration immigration enforcement, reinforcing the ideological alignment between City Hall and the activist candidates Mamdani promotes.

Protest politics as a career ladder

There was a time when getting arrested at a protest carried political risk. Candidates worried about mugshots. Campaigns distanced themselves from civil disobedience charges. That calculation has flipped in deep-blue New York districts, where an arrest at an anti-Israel demonstration now functions as a credential, proof of commitment, not a liability.

Avila Chevalier led anti-Israel protests at Columbia University before she ever filed to run for Congress. She helped build a campus boycott campaign linked to a group that posted "Death to America" on social media. She won a primary against a five-term incumbent. And on Thursday, she sat in a Manhattan street until police put her in handcuffs, then her campaign posted about it before the zip ties were off.

The 13th District is so heavily Democratic that Avila Chevalier's general election is widely considered a formality. Barring an extraordinary upset, she will carry this arrest, and the CUAD connection, and the DSA membership, and the Mamdani endorsement, straight to Capitol Hill.

Voters in Upper Manhattan and the Bronx will get the representative their primary chose. The rest of the country will get another member of Congress who treats lawbreaking as a résumé line and treats the people who have to live with the consequences, commuters stuck behind a blocked road, cops forced to process performative arrests, taxpayers footing the bill, as an afterthought.

About Alex Tanzer

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