New York City Mayor Zohran Mamdani said in a video posted on X on July 22, 2026, that the city cannot legally arrest Israeli Prime Minister Benjamin Netanyahu on its own. Instead, Mamdani called on the federal government to join an international court and carry out the arrest. NPR

The court in question is the International Criminal Court, or ICC, which is a permanent global court that puts individuals on trial for war crimes and crimes against humanity. In 2024, the ICC issued arrest warrants for Netanyahu and former Israeli Defense Minister Yoav Gallant. The court accused them of crimes against humanity, including using "starvation as a method of warfare" by blocking humanitarian aid and intentionally targeting civilians. The United States is not a member of the ICC, which makes it harder for the court to enforce its warrants on American soil. NPR

Mamdani called Netanyahu a "war criminal" and said he is not welcome in New York City. His statement is a step back from what he said earlier in July 2026, when he told the New York Times he and the city's legal team were looking into whether they could arrest Netanyahu if he comes to New York for the UN General Assembly in September 2026. During his 2025 campaign for mayor, Mamdani had gone even further, saying he would try to have the New York City Police Department arrest Netanyahu under the ICC warrant because of his role in the war in Gaza. NPR

President Donald Trump responded on July 21, 2026, posting on social media that Netanyahu "will not be arrested, in any way, shape, or form, while in the United States of America." Trump's statement put him directly at odds with Mamdani's position, though Mamdani's July 22 video did acknowledge the legal limits the city faces. NPR

Israeli UN Ambassador Danny Danon replied to Mamdani on social media, telling the mayor "enough" and accusing him of serving "Hamas' propaganda." NPR

TIME magazine reported that Mamdani's video was posted on X on July 21, 2026, one day before NPR published its reporting on the contents. TIME

The broader context here is a clash between three different levels of authority: the city, the federal government, and an international court. Mamdani's campaign promise to arrest Netanyahu ran into a basic problem: cities do not have the power to enforce international court warrants on their own. It would be like a city police officer trying to carry out a federal court order with no federal support behind it. His shift to asking the federal government to join the ICC turns a local issue into a national one, but Trump's July 21 statement leaves no room for that to happen under the current administration.

For people watching this closely, a few things matter going forward. Mamdani's admission that the city lacks the authority to act may protect him from legal challenges while still letting him keep the strong language that energized his supporters during the campaign. The September 2026 UN General Assembly is the key date to watch: if Netanyahu attends, it would test whether the federal government's promise of no arrest holds and whether Mamdani tries to take any action short of an actual arrest. Danon's response shows the Israeli government is taking the mayor's words seriously as a diplomatic matter, not just local politics, which raises the stakes for any September visit.

The ICC warrants remain the legal foundation of the dispute, but enforcing them inside the United States depends on federal cooperation the White House has already ruled out. Mamdani's call for the U.S. to join the ICC is a position some advocates have held for years, and it is not something a mayor can make happen. What the mayor does control is his platform, and the video on X is the latest use of it.