The speculation follows "border czar" Tom Homan’s promise to “flood the zone” – New York City – with U.S. Immigration and Customs Enforcement agents. The threat followed last weekend’s shooting of an off-duty Customs and Border Protection agent at Fort Washington Park in Upper Manhattan.

NEW YORK (AP) — The Trump administration on Thursday sued New York City over its “sanctuary city” policies, arguing they are obstructing the government from enforcing immigration law and contributed to the recent shooting of an off-duty U.S. Customs and Border Protection officer.