Left turns on Mamdani after Oct. 7 vigil heckling and ICE shooting

 October 10, 2026

Mayor Zohran Mamdani's left-wing base branded him a traitor at an Oct. 7 vigil and chanted he was complicit after an ICE shooting, fracturing his progressive coalition.

Pro-Palestine protesters surrounded New York City Mayor Zohran Mamdani at a Union Square candlelight vigil marking the third anniversary of Hamas' October 7, 2023, attack on Israel. They chanted "traitor" and "sellout" while he held a candle and then left without addressing the crowd.

The next day, after ICE agents shot 28-year-old Oscar Bergal in northern Manhattan's Marble Hill neighborhood, protesters confronted the mayor again. They chanted "Mamdani is complicit" as he spoke about the incident and called for ICE to be abolished.

Daily Mail reporting laid out the full stretch of pressure: the vigil disruption, the ICE clash, unsuccessful calls to President Donald Trump and DHS Secretary Markwayne Mullin, and open restiveness from Democratic Socialists who once backed him.

Mamdani, an avowed Democratic Socialist, built his rise on hard-left activism. This week showed how fast that same base turns when a mayor must govern.

Masked protesters charge genocide at the anniversary vigil

Several hundred demonstrators booed Mamdani at the Union Square event. Organizers had to move the Israelis for Peace ceremony behind police barriers after the disruption.

Just the News described the scene as protesters shouted "Traitor!" and "Zohran, what do you have to say?" The mayor, who is Muslim, faced the jeers while marking the Hamas attack's anniversary.

Anti-Israel activists went further. They surrounded him with chants that accused him of blood on his hands and selling out his people.

Fox News recorded the crowd yelling "Traitor, traitor, come on out! You sold all your people out!" and "Zohran, you can’t hide. We charge you with genocide!"

One chant drove the purity test home: “Seven hundred thousand dead, Mamdani, your hands are red.”

The Washington Examiner noted Mamdani's own Oct. 7 message gave only 40 words to Jewish victims before pivoting to a Palestinian state. Even that proved insufficient for the activists who once treated him as a champion.

After the vigil he dined at Hinds Hall, a Palestinian restaurant on the Upper West Side. A masked activist outside his car shouted, "Stop being a f***ing traitor." Another called him a "boot licker."

National Review's Noah Rothman observed the same dynamic, writing that the masked, keffiyeh-clad hecklers shared the uncompromising anti-Zionist line Mamdani had long advanced. The National Review piece captured protesters calling him a "coward," yelling "shame on you," and again charging genocide.

Public rejection has followed Mamdani before, including when thousands booed him off stage at an NYPD event on Staten Island.

ICE shooting brings fresh chants of "complicit"

Around 4 p.m. Thursday, ICE agents shot Bergal near West 225th Street and Marble Hill Avenue while he drove with his five-year-old son. Bergal, an immigrant from the Dominican Republic, remains in Brooklyn federal jail with a bullet still in his body, according to his lawyer Harold Solis.

DHS said Bergal refused orders to exit his car, then "accelerated and smashed into two government vehicles" before officers fired. Authorities described him as undocumented with a felony record and gang affiliations.

Mamdani responded by demanding ICE's abolition. He told reporters ICE "undermines public safety" and "makes us less safe." He placed phone calls to Trump and Mullin seeking Bergal's release and the removal of ICE agents from the city. Both efforts failed.

Protesters met his remarks with the "Mamdani is complicit" chant. NYPD officers later pushed anti-ICE demonstrators to the ground that night. Democratic congressional candidate and DSA member Darializa Avila Chevalier, who was among the demonstrators, posted that the department "spent more time protecting a militia that just shot someone than protecting New Yorkers."

Mamdani stood beside NYPD Commissioner Jessica Tisch during his comments. He later told the Times there were "no plans to change that" and that they would review the prior 24 hours together. He also restated his campaign vow to disband the NYPD's Strategic Response Group, which he once said had "brutalized countless New Yorkers exercising their first amendment rights."

Critics have already questioned his judgment on sensitive commemorations, from backlash over laughter during a 9/11 reading of victims' names to separate calls to keep him away from Ground Zero.

Trump meetings and a restless DSA base

Mamdani's repeated contacts with Trump, including a September meeting at Gracie Mansion, drew more left-wing fire. He explained the outreach simply.

"to ensure that we're using every opportunity we have to deliver for this city."

On the broader pressure he told the AP, "I am the mayor of New York City and this is what I signed up for." To the Times he added he was "in pain hearing from families whose loved ones were killed by Hamas on October 7," while also stating he was "angry that the genocide in Gaza continues and has killed 74,000 Palestinians" and "outraged" by the ICE shooting.

Gustavo Gordillo, co-chair of the New York City Democratic Socialists of America chapter, said the group still backed the mayor but saw clear warning signs.

"This week was indicative of some restiveness and a desire among the base to see concrete policy for Palestinian liberation and quicker progress on some policing promises."

Former state senator and Democratic strategist David Carlucci put the bind in plainer terms.

"The transition from activist to executive is one of the toughest challenges in politics."

That gap between protest rhetoric and city governance keeps widening. Mamdani has floated ideas such as city-run grocery stores with taxpayer-subsidized prices, yet his base still measures him against maximalist demands on policing and foreign policy.

Rudy Giuliani and others have already argued he should face tighter limits at major civic events, a sign of how far the standing fight has spread beyond the activist left.

One earlier flashpoint came when Giuliani said Mamdani should be barred from Ground Zero on the 9/11 anniversary.

Bipartisan criticism has also hit him over crime messaging, including fire for blaming rising rape numbers on an "expanded definition."

Governing collides with the purity spiral

Mamdani entered office as the candidate who spoke the left's language on Israel, policing, and immigration. Within days of the October 7 anniversary he was called a traitor for attending a vigil, then complicit for failing to expel federal agents after a shooting DHS tied to a suspect who rammed government vehicles.

He kept Tisch, kept talking to Trump, and kept failing to deliver the concrete breaks his base now demands. The DSA says it will hold him accountable. The street protesters already have.

New Yorkers watching the chants, the failed phone calls, and the open restiveness can see the cost of electing activists who treat every compromise as betrayal.

The left elevated Mamdani, then turned on him the moment governing required more than slogans, and the city pays the price for that revolving purity test.