New York City Mayor Zohran Mamdani said he is in "active conversation" with the city's law department about whether he has the authority to order the arrest of Israeli Prime Minister Benjamin Netanyahu if Netanyahu visits New York for the UN General Assembly in September 2026. Mamdani made the remarks in an interview with The New York Times show "The Interview," published July 18, 2026, titled "Zohran Mamdani: 'Netanyahu Belongs in the Hague'" (The New York Times).

"I believe that Prime Minister Netanyahu belongs in the Hague," Mamdani said, referring to the seat of the International Criminal Court (ICC) — the permanent international court in the Netherlands that prosecutes individuals for war crimes, crimes against humanity, and genocide. He called Netanyahu "a war criminal who has been charged by the International Criminal Court." The ICC issued an arrest warrant for Netanyahu over possible crimes against humanity in Gaza (Al Jazeera).

Mamdani, a democratic socialist, pledged during his mayoral campaign to arrest Netanyahu if the Israeli leader came to New York City. In the NYT interview, he struck a more measured tone about the limits of his office. "Whatever the law allows me to do in New York City, that's what we will do, but we won't be writing our own laws to that end," he said (Al Jazeera).

The legal picture here is layered. The United States is not a party to the Rome Statute — the treaty that established the ICC — and is therefore not obligated to execute ICC arrest warrants. New York City's law department operates under the framework of US federal and state law, meaning Mamdani's municipal authority to arrest a visiting head of government would face significant jurisdictional constraints. His qualifier, that he will not "write our own laws," signals an awareness that any arrest attempt would need to rest on existing statutory authority rather than a mayor simply ordering it done.

Netanyahu has signaled defiance. In December 2025, speaking at The New York Times DealBook Summit, he said he was undaunted by legal challenges and would visit New York City despite Mamdani's arrest threat (The New York Times). Israel's ambassador to the UN, Danny Danon, insisted that Netanyahu will attend the September 2026 General Assembly meeting regardless of the arrest threats (Al Jazeera).

Netanyahu also responded personally to Mamdani's arrest call, telling radio personality Sid Rosenberg that he believes Mamdani secretly "hates America." During the mayoral campaign, Rosenberg had referred to Mamdani as a "cockroach" and later apologized (Al Jazeera).

The exchange between a sitting US mayor and an allied head of state is unusual in itself, but it is unfolding against a broader shift in Democratic Party politics on Israel. A May 2026 poll found that nearly three-quarters of Democratic voters oppose US aid to Israel, up from 45 percent three years earlier. Earlier in the week of July 18, 2026, nearly half of Democratic members of the US House of Representatives voted to end US aid to Israel (Al Jazeera).

The broader context here matters for reading the Mamdani-Netanyahu dynamic. Mamdani's arrest pledge tracks a real shift in the center of gravity within the Democratic electorate on Israel policy, particularly around the conduct of the Gaza war and the ICC's intervention. Whether a New York City mayor could actually execute such an arrest is a separate question from the political signal the pledge sends, and Mamdani's careful phrasing in the NYT interview suggests he is calibrating between campaign-trail commitment and governing-room realism.

The September General Assembly will test whether the legal consultation Mamdani has initiated produces any actionable finding, or whether the matter stays at the level of political posture. In either case, the episode places New York City's mayor at an unusual intersection of international criminal law, federal non-cooperation with the ICC, and domestic electoral pressure on Israel policy that shows no sign of receding.