The Justice Department on Thursday announced a lawsuit against New York City’s so-called sanctuary city policies, days after the Trump administration blamed those policies for the shooting of an off-duty US Customs and Border Protection officer in Manhattan.

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.