The immigration blitz was action long promised by President Donald Trump who made mass deportation central to his campaign.

Tom Homan said Chicago is very organized,” Margarita Klein, director of member organizing for Arise Chicago, proclaimed gleefully in Spanish to a room of 80 people at an immigrant rights training, many of whom laughed and clapped in response.

The campaign aims to educate residents about their rights in the event of being stopped or detained by federal agents with U.S. Immigration and Customs Enforcement, or ICE.