Trump administration ‘drawing up plans’ to stop processing international flights in sanctuary cities

His remarks came in response to protests outside an immigration detention facility in Newark over the Memorial Day long weekend, which he condemned.

This could potentially target major Democratic-led hubs including New York, Los Angeles, Chicago and San Francisco.

The Homeland Security chief singled out Democrats in Newark, New Jersey, due to recent clashes between law enforcement and protesters at Delaney Hall, an Immigration and Customs Enforcement detention center.

The move could significantly disrupt international air travel and commerce at major airports in Democratic-led states, with millions of foreign tourists expected to arrive for next month's start of the FIFA World Cup.