The Trump administration is considering a controversial new immigration crackdown that could disrupt international air travel across major U.S. cities. Homeland Security Secretary Markwayne Mullin revealed that officials are drawing up plans to halt international flight processing at airports located in sanctuary cities. Speaking on Fox News, Mullin argued that cities refusing to cooperate with federal immigration enforcement should not benefit from immigration processing at their airports.

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The Department of Homeland Security is looking for new ways to punish sanctuary cities.