“My administration has reviewed every avenue available under applicable law to determine whether New York City could execute the international criminal court’s arrest warrant if Benjamin Netanyahu came here,” Mamdani said. “It is clear that we do not have the independent legal authority to enforce this warrant.
https://nitter.net/NYCMayor/status/2079718073058091261#m
https://www.theguardian.com/us-news/2026/jul/21/mamdani-benjamin-netanyahu-arrest-authority
I think he’d have to collaborate with a foreign entity that can kidnap and smuggle him out of the country to a place with ICC-recognized jurisdiction. Federal law and immunity would probably trump Mamdani in any other situation.