New DHS Secretary Mullen Floats New Plan to Punish Sanctuary Cities

Department of Homeland Security (DHS) Secretary Markwayne Mullin warned sanctuary cities run by Democrats that their refusal to cooperate with federal immigration enforcement could lead DHS to reconsider customs processing at their international airports. In an interview with Fox News’ Bret Baier, Mullin highlighted a key issue: cities that depend on federal enforcement when international flights arrive but then refuse to assist once those travelers enter the country. ? BOOM: DHS Sec. Markwayne Mullin drops the hammer on sanctuary cities, they could lose CBP customs processing at airports until they start complying with federal immigration law. pic.twitter.com/oWmxst0fsZ — Gunther Eagleman™ (@GuntherEagleman) April 6, 2026 “I believe sanctuary cities is not lawful. I don’t think they’re