One federal agency pullback could turn America’s biggest “sanctuary” airports into dead ends for international travelers overnight.
Story Snapshot
- DHS Secretary Markwayne Mullin floated removing CBP customs processing from international airports in large sanctuary cities that refuse immigration cooperation.
- The practical effect would be severe: without CBP to process arrivals, international flights can’t lawfully land and unload passengers at those hubs.
- Mullin framed the idea as a fairness question: why should a city benefit from federal port-of-entry services while resisting enforcement once travelers leave the terminal?
- The proposal surfaced during a heated funding environment for DHS, raising questions about leverage, authority, and inevitable legal challenges.
Mullin’s Airport Pressure Point: Customs as the Leverage Nobody Expected
Markwayne Mullin’s argument lands because it targets a physical chokepoint rather than a budget line. Airports are not just local infrastructure; they are federal ports of entry where Customs and Border Protection decides who enters the country and under what terms. Pull CBP from a major international terminal and you don’t “punish politicians” in the abstract—you stop the machine that makes global travel function in that city. That’s why the idea sparked instant attention.
The sharpest element in Mullin’s framing is the question of reciprocity. Sanctuary policies typically limit how much local law enforcement helps federal immigration enforcement, especially after an arrest or release decision. Mullin’s proposal flips the script: if a city says it will not partner with the federal government on immigration enforcement, the federal government can decide it will not provide the staffing that allows international arrivals to flow straight into that city.
How a “Floating” Proposal Could Still Reshape the Battle Lines
Mullin did not announce a signed directive; he floated the concept publicly during an interview, and reporters amplified it with specific references to high-traffic hubs in places like Los Angeles and New York. That distinction matters because it creates two simultaneous realities. In the short term, it’s not yet policy. In the political reality of 2026, however, a floated idea from the sitting DHS Secretary functions like a trial balloon: it pressures mayors, signals priorities to the base, and dares opponents to litigate.
Sanctuary-city fights usually revolve around grants and reimbursements, which makes them easy to drag into years of hearings and procedural trench warfare. Airport operations are different. Airlines, tourism boards, hotel unions, convention planners, and foreign partners all feel immediate pain if a gateway like JFK or LAX loses the ability to process international arrivals. That’s the open loop Mullin created: the mayors may not care about Washington’s threats, but do they care about their city’s global front door?
Sanctuary Policy Origins Collide with Federal Control of the Border
Sanctuary rules grew out of local efforts to limit involvement in deportations, often justified as community-trust policing. Over decades, that idea expanded into formal policies restricting cooperation with ICE detainers and information sharing in certain circumstances. Conservatives see the same pattern repeat: local leaders accept the upside of living inside a nation with borders—federal screening, visas, customs enforcement—while attempting to veto the enforcement consequences when non-citizens violate the terms of entry or commit crimes.
Federalism cuts both ways. Cities argue they can set policing priorities and refuse to become an arm of federal immigration enforcement. That argument has some constitutional weight, especially against “commandeering.” Common sense still asks a blunt question: if local leaders actively obstruct cooperation, why should the same localities receive seamless federal services that make them richer, safer, and more connected than the rest of the country? Mullin’s concept pushes that tension into the one place nobody can ignore: the arrivals hall.
Practical Fallout: Travelers, Airlines, and the Hidden Economics of a Customs Desk
CBP staffing isn’t decorative; it’s the legal and operational gate. International passengers must clear inspection, and airlines build entire route maps around where that processing exists at scale. If CBP stops operating in a major airport, carriers reroute to other U.S. ports of entry, passengers miss connections, and local economies lose high-value travel overnight. The political fight becomes less about slogans and more about canceled conferences, lost tourism dollars, and businesses quietly relocating travel-heavy operations elsewhere.
The second-order consequences may hit working people first. Airport concessions, rideshare drivers, hotel staff, and small businesses around a major hub live on volume. This is where conservative values find traction: policy choices should carry consequences, and those consequences should be visible enough that voters can connect cause and effect. If city hall chooses sanctuary non-cooperation, city hall should own the downstream results, not outsource them to federal agencies and the taxpayers who fund them.
What Pushback Will Look Like: “Blackmail” Claims, Lawsuits, and a Test of Resolve
Opponents already have a vocabulary for this: they call it coercion or “blackmail,” similar to past fights over withholding federal funds from jurisdictions that resist deportation cooperation. Expect lawsuits arguing the federal government cannot condition essential port-of-entry services on local policing choices, plus political messaging that frames travelers as hostages. Those complaints will sound sympathetic until you apply the same standard elsewhere: if a city can selectively refuse cooperation, Washington can selectively allocate scarce enforcement resources.
Nothing about this debate stays academic because the country’s immigration system operates at human scale: a detainer ignored, an offender released, a victim created. Mullin’s critics will emphasize disruption at airports; supporters will emphasize disruption in neighborhoods when local officials block deportation cooperation. The stronger fact pattern, from a conservative perspective, remains the one rooted in public safety and rule of law: policies should discourage illegal entry and unlawful presence, not normalize them.
The real suspense is whether Mullin turns a “float” into a formal tool during a broader DHS funding and enforcement showdown. If he does, sanctuary mayors face a choice with no comfortable talking points: partner with federal immigration enforcement in some workable form, or explain to residents why their city’s international gateway suddenly requires a connection through a different state. That is leverage you can’t filibuster, and it may be exactly why the idea refuses to die.
Sources:
Sec. Markwayne Mullin’s Newest Proposal Should Have the Left Terrified
Mad about migrant flights? Open-border liberals should look in mirror, see who’s breaking law
ICE Deportation, Immigrant “Sanctuary Cities,” and H.R. 7640 in Congress