The ICC says its investigation into alleged crimes against humanity will continue despite the withdrawal.
Mamdani walked back his threat last week, acknowledging he lacked the legal power to arrest Netanyahu on a warrant issued by the International Criminal Court.
Announcement comes as Venezuela has hewed close to Trump administration, who has pledged to'disable' international court.
ICC's 125 member states will vote by secret ballot Friday on the fate of Khan, who faces sexual misconduct allegations.
Mamdani says he takes Netanyahu’s ICC arrest warrant ‘seriously’
US State Department ups pressure campaign on international tribunal, threatening allies who support investigations.
The United States on Monday announced a campaign against the Hague-based International Criminal Court (ICC), accusing the tribunal of posing “an intolerable threat to US sovereignty” and threatening sanctions. “The ICC and its friends are waging a war against our country, not with bullets or missiles, but with statutes, compacts and the force of so-called international law,” Secretary of State Marco Rubio said in a video statement. The State Department said in a statement the campaign will...