In a social media post, President Trump said Chicago was “about to find out why it’s called the Department of WAR.” Illinois officials condemned the message.

© Jamie Kelter Davis for The New York Times

Protesters held demonstrations and city leaders spoke against the prospect of a surge of federal agents.

© Jamie Kelter Davis for The New York Times

The president has sent soldiers and federal agents to some cities, and promised to do the same in others, prompting lawsuits and stirring outrage among local leaders.

© Philip Cheung for The New York Times