The state of Illinois and Chicago on Monday sued the Trump administration over its move to deploy National Guard troops to Chicago as the White House targets Democrat-led cities amid weeks of protests against the federal government's immigration enforcement campaign.

"Defendants' deployment of federalized troops to Illinois is patently unlawful," the lawsuit says. "Plaintiffs ask this court to halt the illegal, dangerous, and unconstitutional federalization of members of the National Guard of the United States, including both the Illinois and Texas National Guard."