By: Justin Winograd

A primary contest in Manhattan and Brooklyn has become an unexpected crucible for one of the Democratic Party’s most volatile internal debates: how to reconcile progressive politics with support for Israel and its most prominent advocates in Washington. At the center of the confrontation are Rep. Dan Goldman, the incumbent Democrat, and his challenger Brad Lander — with New York City Mayor Zohran Mamdani injecting fresh political electricity into the race through a viral video targeting AIPAC, the American Israel Public Affairs Committee.

As reported on Thursday by The Jewish Telegraphic Agency (JTA), Lander received a conspicuous boost when Mamdani appeared alongside him in a stylized campaign video that singled out both men’s opposition to AIPAC. In a tongue-in-cheek exchange that echoed Mamdani’s mayoral campaign’s viral aesthetic, the mayor asks, “A lifelong progressive? You mean you haven’t sold out to special interests?” Lander responds, “Or AIPAC either.”

I’m proud to be supporting my friend Brad Lander for Congress. @BradLander has spent his career taking on big fights for New York’s working families. He’ll bring principled leadership to Washington and make sure Congress works for the many, not just the few. pic.twitter.com/DJ5Xf1og22

— Zohran Kwame Mamdani (@ZohranKMamdani) February 25, 2026

The clip, widely circulated online, was both playful and pointed. According to the JTA report, it crystallized the message Lander has sought to foreground in his challenge to Goldman: that alignment with AIPAC and robust support for Israel represent a departure from progressive orthodoxy. In framing the race this way, Lander has not merely criticized Goldman’s policy positions; he has sought to situate them within a broader narrative of institutional influence and ideological drift.

Lander’s strategy is notable given his own identity within New York’s Jewish political ecosystem. The JTA report described him as Mamdani’s most prominent Jewish ally, underscoring the layered dynamics at play. In an electorate that includes a substantial Jewish population, the contest has unfolded less as a binary debate between pro- and anti-Israel camps than as a dispute over what constitutes authentic progressive engagement with Jewish and Israeli issues.

Mamdani’s endorsement of Lander further complicated the calculus. Mamdani split from other prominent Democrats in backing Lander, while Gov. Kathy Hochul publicly endorsed Goldman. The alignment of state leadership behind the incumbent and the mayor behind his challenger reflects a broader tension within the party, particularly in districts where progressive activists wield outsized influence.

Goldman, for his part, has not ceded the progressive label. As the JTA report noted, he characterizes his stances on Israel as consistent with progressive values, emphasizing criticism of the current Israeli government while affirming Israel’s right to exist securely as a Jewish state. His political identity rests on a belief that one can be both critical of specific Israeli policies and committed to the country’s foundational legitimacy.

Yet AIPAC’s role in the race has amplified sensitivities. AIPAC has become increasingly radioactive among some elected officials and activists. In progressive circles, the organization is often portrayed as emblematic of entrenched lobbying power. Goldman, however, has maintained a longstanding relationship with the group — even meeting his wife at an AIPAC event, as JTA reported — a biographical detail that underscores how deeply embedded such affiliations can be in personal as well as political networks.

Goldman has responded to the vilification of AIPAC with measured skepticism. “I do think there is an undercurrent of antisemitism in the degree to which AIPAC seems to be vilified,” he recently said. His remark suggests a concern that criticism of the organization can, at times, blur into broader hostility toward Jewish political participation.

The contest has also intersected with debates over antisemitism in New York. Goldman told The New York Editorial Board that he refrained from endorsing Mamdani in a prior race because he never felt the mayor “fully got there” in addressing what Goldman described as “the dramatic rise in antisemitism.” The JTA reported that Goldman emphasized the necessity of proactive measures to prevent the emergence of what he termed a “permission structure” for chants sympathetic to Hamas on city streets.

This formulation reflects an anxiety shared by many Jewish New Yorkers who have witnessed intensifying protests and rhetoric since the outbreak of the Israel-Hamas war. As the JTA has chronicled in other contexts, the political salience of antisemitism in New York has surged, reshaping alliances and campaign messaging.

Lander’s approach, by contrast, positions opposition to AIPAC as integral to progressive authenticity. By centering Goldman’s ties to the lobby in his critique, Lander taps into a broader movement within the Democratic Party that seeks to disentangle U.S. policy from traditional pro-Israel advocacy structures. While Goldman enjoys backing from a range of progressive organizations — including, as of Thursday, Planned Parenthood — Lander’s coalition reflects a different axis of progressive energy, one that prioritizes recalibrating the party’s stance toward Israel.

The symbolic weight of Mamdani’s endorsement cannot be overstated. His mayoral campaign, marked by a savvy use of social media and irreverent messaging, reshaped expectations for progressive outreach in New York. By lending his imprimatur to Lander and appearing in the anti-AIPAC video, Mamdani effectively nationalized what might otherwise have been a localized primary contest.

The JTA report emphasized that the race encapsulates broader generational and ideological shifts within American Jewry and the Democratic Party. While older Jewish voters often retain strong institutional ties to organizations like AIPAC, younger activists frequently articulate a more critical stance toward Israeli government policies and the mechanisms through which U.S. support is mobilized.

Yet the boundaries between policy critique and communal anxiety remain delicate. Goldman’s invocation of antisemitism in discussions of AIPAC criticism illustrates the fine line candidates must navigate. Goldman has warned against rhetoric that might inadvertently legitimize hostility toward Jews under the guise of political disagreement.

The district itself, encompassing affluent Manhattan neighborhoods and parts of Brooklyn, mirrors these crosscurrents. It includes secular progressive enclaves alongside traditional Jewish communities for whom Israel remains a deeply personal issue. The outcome may hinge not merely on ideological positioning but on turnout dynamics among constituencies animated by differing priorities.

For observers beyond New York, the contest offers a microcosm of national debates. The Democratic Party continues to wrestle with how to integrate increasingly vocal progressive critiques of Israel into a platform that historically emphasized bipartisan support for the Jewish state. The JTA report highlighted similar tensions in congressional primaries across the country, suggesting that the Lander–Goldman race is part of a broader realignment.

As the campaign advances, both candidates appear committed to framing themselves as the authentic voice of progressive values. For Lander, that authenticity involves distancing from AIPAC and aligning with a reimagined vision of Middle East policy. For Goldman, it entails affirming progressive principles while defending the legitimacy of traditional pro-Israel advocacy and confronting antisemitism head-on.

In the end, the electorate will determine which interpretation resonates more deeply. But as the JTA report observed, the stakes extend beyond a single congressional seat. They touch upon the evolving relationship between American Jews, progressive politics and the enduring question of how best to balance advocacy, identity and principle in an era of heightened polarization.

Whatever the outcome, the race has already illuminated a fundamental truth: within the Democratic Party — and within American Jewish life — the conversation about Israel, AIPAC and antisemitism is neither static nor settled. It is contested terrain, and in Manhattan and Brooklyn, that contest has taken center stage.