Mamdani Appointee Resigns After One Day Over Resurfaced Antisemitic, Anti-Police Posts

Catherine Almonte Da Costa, a senior appointee to New York City Mayor-elect Zohran Mamdani’s incoming administration, resigned Thursday after resurfaced social media posts showed her mocking Jews and attacking law enforcement. Da Costa was announced just a day earlier as Mamdani’s director of appointments, a top-level role tasked with staffing key positions across city government. But within hours, archived posts from her social media account began circulating — including one that read: “Money hungry Jews smh.”

Da Costa lasted exactly one day. The woman Mamdani selected to recruit talent and screen candidates for city government couldn’t survive the most basic background check herself. That’s not irony—that’s a five-alarm fire.

Additional posts from 2011 and 2012 showed Da Costa mocking Jewish commuters on the “Jew train” and referencing “rich Jewish peeps” at her workplace. Charming stuff. In her resignation statement, she trotted out the predictable defense: these posts were “not indicative of who I am.” She also noted—and this is genuinely remarkable—that she is “the mother of Jewish children.” Apparently, that’s supposed to make the antisemitic posts okay. Mamdani accepted her resignation, praising her “deep remorse.”

Here’s the thing. If Da Costa’s hiring were a one-time oversight, New Yorkers might extend some grace. New administrations stumble. People make mistakes. But her appointment isn’t an isolated blunder. It’s part of a pattern that reveals something deeply wrong with Mamdani’s judgment—or his values.

Consider who else sits on his transition team. There’s Tamika Mallory, the former Women’s March leader who was pushed out of that organization over her cozy relationship with notorious antisemite Louis Farrakhan. When pressed repeatedly to denounce Farrakhan’s hateful rhetoric, Mallory flatly refused. Her reward? A seat on Mamdani’s Transition Committee on Community Safety. Unbelievable.

Then there’s Mysonne Linen. In 1999, a Bronx jury convicted him of two armed taxi driver robberies. He served seven years of a potential 25-year sentence. The man who stuck guns in the faces of working-class New Yorkers now helps shape the city’s public safety policy. Mamdani personally tapped him to lead the transition team on that front.

The Da Costa mess extends beyond her hatred of Jews. Her social media history also exposed visceral hostility toward police officers. She called NYPD cops “piggies.” She posted “F*** the police.” During the 2020 riots, she demanded defunding the NYPD by $1 billion and yanking officers from schools and subways.

These anti-cop rants weren’t mentioned in her resignation. But they complete the picture. Here’s someone who despises both Jews and police officers—and Mamdani saw her as leadership material. At a moment when New York still wrestles with public safety problems, the incoming mayor apparently has no issue elevating people who view cops with contempt rather than respect.