The legal action citing the Supremacy Clause of the U.S. Constitution comes days after an off-duty Customs and Border Protection officer was shot in the face and leg during an ambush robbery attempt in an Upper Manhattan park, allegedly by a pair of undocumented migrants with previous arrests.

The case filed Thursday is the latest attempt by the Trump administration to sanction New York City over its "sanctuary" policies. Earlier this year, the administration began to claw back tens of millions of dollars that had already been allocated by Congress in migrant-crisis reimbursements.

Federal immigration authorities are ramping up enforcement across New York City in a major 2025 crackdown, targeting “sanctuary” policies and sparking fierce backlash.