U.S. Homeland Security Secretary Markwayne Mullin threatened to withdraw customs officers or suspend processing at airports in sanctuary cities [1].
This move targets the critical infrastructure of major metropolitan hubs to pressure local governments into cooperating with federal immigration and border control policies [2]. By disrupting international travel, the federal government seeks leverage over cities that limit their coordination with federal authorities.
On April 7, 2024, Mullin said that the federal government could stop processing customs formalities at these locations [3]. The proposed action specifically targets four airports located in Los Angeles, San Francisco, New York, and Chicago [1].
Reports on the specific nature of the threat vary among sources. Some indicate a total withdrawal of Customs and Border Protection (CBP) agents from these facilities [4]. Other reports suggest the measure would focus on suspending customs processing or potentially blocking the entry of international travelers [2], [5].
"The federal government could stop processing customs formalities at the airports of sanctuary cities," Mullin said [3].
Secretary Mullin said the possibility of removing CBP agents entirely from the affected airports [4]. These cities have historically maintained "sanctuary" status, which often involves policies that restrict local law enforcement from assisting federal agents in the deportation of undocumented immigrants [2].
Such a disruption would impact millions of passengers and thousands of businesses that rely on the seamless flow of international commerce through these four major hubs [1]. The proposal marks a significant escalation in the ongoing tension between federal immigration enforcement and municipal governments.
“"The federal government could stop processing customs formalities at the airports of sanctuary cities,"”
This strategy represents a shift toward using economic and logistical pressure—specifically targeting international gateways—to compel municipal compliance with federal law. If implemented, the suspension of CBP services would likely create severe travel bottlenecks and legal challenges regarding the federal government's authority to disrupt commerce as a means of political leverage over local jurisdictions.
