President Donald Trump announced an expansion of U.S. Immigration and Customs Enforcement raids on sanctuary cities as part of his campaign promise of the “largest Mass Deportation Program in History.

President Donald Trump issued a new social media proclamation Sunday night directing federal officials to prioritize deportations from New York and other Democrat-run cities, a move that comes after large protests erupted across the country in response to his administration’s immigration enforcement policies.

Even as he eases deportations in Trump-friendly industries and places, the president is using ICE as an instrument of partisan warfare.