President Donald Trump directed federal officials to expand efforts to deport migrants in the largest US cities in the face of protests and court challenges, even as his administration is looking to ease the impact of the crackdown on key sectors of the American workforce.

Chicago is among the cities listed in President Trump's new call for what he's calling the "single largest mass deportation program in history." In a social media post on Sunday, Mr. Trump ordered ICE to expand efforts in cities he called "the core of the Democratic power center.