Illinois and Chicago sued President Donald Trump Monday to prevent the deployment of National Guard troops here from any state, setting up one of the biggest legal clashes yet between the Republican president and Illinois’ Democratic leaders.
The lawsuit calls the deployment “illegal, dangerous, and unconstitutional.” The state is also seeking a temporary restraining order blocking Secretary of Defense Pete Hegseth from calling members of the Illinois and Texas national guards into federal service.
Pritzker announced Sunday that Trump had ordered 400 members of the Texas National Guard to deploy into Illinois, Oregon and elsewhere. The news came after more than a month of threats from Trump, as well as the start of an aggressive deportation campaign here.
“We must now start calling this what it is: Trump’s Invasion,” Pritzker, a possible 2028 presidential candidate, said Sunday evening.
Illinois Attorney General Kwame Raoul’s office filed the lawsuit hours after a federal judge in Oregon blocked the Trump administration from deploying any National Guard troops under Trump’s command into the state of Oregon.
U.S. District Judge Karin Immergut had earlier blocked the deployment of Oregon National Guard troops, leading to reports that the Trump administration might send troops from California or Texas to Oregon instead.
Immergut questioned a Justice Department lawyer over whether the White House was “simply circumventing my order” before she issued her broader ruling. She also refused to delay the implementation of her new order.
Illinois will now seek similar relief from a federal judge based in Chicago. The case was assigned Monday morning to U.S. District Judge April Perry and U.S. Magistrate Judge Jeffrey Gilbert. Perry is the judge whose previous nomination to be U.S. attorney in Chicago was blocked by then-Sen. JD Vance.
The law cited by Trump to deploy troops into Illinois, California and Oregon allows the president to call into federal service members of the National Guard of any state if there is an invasion or rebellion — or if the president is “unable with the regular forces to execute the laws of the United States.”
California Gov. Gavin Newsom has had mixed success suing Trump over the deployment in his state. The 9th U.S. Circuit Court of Appeals, which hears cases from states that include California and Oregon, found that courts must be “highly deferential” to the president on the matter.
However, Immergut wrote in her order this weekend that “ ‘a great level of deference’ is not equivalent to ignoring the facts on the ground.”
Illinois is not part of the 9th Circuit. Rather, appeals from Chicago’s U.S. District Court go to the 7th U.S. Circuit Court of Appeals.
Illinois’ lawsuit cites Trump’s history of derogatory comments toward Chicago, dating back to 2013 when he wrote online that “we need our troops on the streets of Chicago, not in Syria.”
It also notes Trump’s hostility toward so-called “sanctuary” cities and states, where policies bar local authorities from cooperating with deportation efforts. Trump’s Justice Department sued Pritzker, Chicago Mayor Brandon Johnson and others over those policies earlier this year, but the lawsuit was dismissed this summer by U.S. District Judge Lindsay Jenkins.
Illinois’ new complaint details Trump’s rhetoric over the last month or so, including his social media post that reads “I love the smell of deportations in the morning” and adds that Chicago is “about to find out why it’s called the Department of WAR.”
The lawsuit also points to the late-September patrol by federal agents through Downtown and the River North neighborhood.
Finally, it cites the events of recent days, including a Saturday memo received by Illinois National Guard Adjutant General Rodney C. Boyd that read, “the President has directed the mobilization of at least 300 members of the Illinois National Guard … to protect federal personnel, functions, and property in Illinois.”
Another memo purported to federalize National Guard troops from Texas into Illinois and Oregon, according to the lawsuit.
“The State of Illinois learned from a credible source that the physical deployment of the Texas National Guard troops to Illinois was planned for the following day, October 6th,” it said.
This is a developing story. Check back for updates.