The Stop the ICC Act prohibits the United States from cooperating with the International Criminal Court in any capacity and bars all federal funding from going to the ICC. The bill also blocks economic support funds from being provided to the Palestinian Authority, citing the ICC's 2021 investigation into the situation in Palestine and the prosecutor's recent request for arrest warrants for Israeli leaders. The legislation essentially cuts off U.S. engagement with and financial support for the ICC while simultaneously ending aid to the Palestinian Authority in response to its involvement with ICC investigations into Israeli conduct. This bill affects U.S. foreign policy toward international justice mechanisms and impacts funding for Palestinian governance and development programs. No specific funding amounts or implementation timelines are specified in the legislation.