Decision imminent in landmark US Department of Justice lawsuit over immigration enforcement in Chicago and across Illinois

CHICAGO (WLS) — An important ruling is expected soon regarding a lawsuit about immigration enforcement in Illinois, which could have significant constitutional consequences.

A judge from the U.S. district court is poised to determine if a federal lawsuit against Illinois, including Cook County and the city of Chicago, concerning the collaboration with immigration enforcement, will proceed or be thrown out.

The ABC7 I-Team reviewed court filings in the case to learn more about the arguments that the U.S. Department of Justice is making.

ABC7 Chicago is now streaming 24/7. Click here to watch

The lawsuit was filed in February shortly after U.S. Attorney General Pam Bondi took office.

The federal government contends that Illinois laws restricting cooperation between Immigration and Customs Enforcement (ICE) and local police are unlawfully obstructing immigration enforcement, potentially endangering public safety.

In one example included in the filing, federal officials allege a suspect wanted on an immigration detainer was being held in Cook County jail in August 2024, and following state and local laws, jail officials refused to honor ICE’s detainer.

That individual was released, and months later, the DOJ claims they were “subsequently arrested.. for criminal sexual assault and abuse of a minor.”

The examples listed in the court filings do not include any specific details, such as the suspects names or local law enforcement agencies involved in the investigations.

ABC7 Chief Legal Analyst Gil Soffer said while the Illinois TRUST Act and Chicago Welcoming City ordinance may not be found to be outright illegal, it comes down to how they are enforced.

“The state generally would have a right not to cooperate, or affirmatively volunteer to cooperate with the feds,” Soffer said. “It doesn’t have the right to obstruct the feds, and that’s really the key question.”

Soffer said the case boils down to the line between state and federal rights.

“What are the powers of the feds? What are the powers of the states? How do you separate them, and how do you honor each of them?” Soffer said. “This case calls that very concept into question.”

In their filed arguments, U.S. attorneys assert federal powers are “broad and undoubted over the subject of immigration and the status of aliens,” and that prohibiting collaboration makes immigration enforcement “nearly impossible.”

But immigration enforcement has been occurring in Illinois since President Donald Trump took office for his second term.

While ICE has not released the number of arrests at the local or state level, federal data published by Syracuse University’s TRAC, and reviewed by the I-Team, shows from January to March of this year, 6,430 new deportation proceedings were filed in Illinois immigration court.

Illinois Attorney General Kwame Raoul told the I-Team he believes a judge weighing in on this issue is necessary, even if the issue at the center of the case has been argued and settled before.

“I’m pleased that the Department of Justice chose to sue Illinois first, so that we can get clarity for our local law enforcement departments throughout the state,” Raoul said, adding that this has been litigated twice before.

Raoul said of the verdicts in those cases, “The 10th Amendment protects states against being commandeered by the federal government to do what is the federal government’s work.”

In court filings, the state of Illinois has argued there are no federal laws that compel state or local police to “facilitate or effectuate civil immigration detentions” while underscoring local law enforcement will always comply with federal warrants, separate from detainers.

“Congress’s power to determine who may lawfully be in the United States does not include the power to conscript state and local police as federal immigration agents,” the state has argued.

Raoul said he expects the case to be dismissed.

“There is no state department of immigration enforcement. There is no city department of immigration enforcement,” Raoul told the I-Team. “We’ve accepted for a long time now that that is the job of the federal government.”

Cook County and the city of Chicago have also argued the U.S. has failed to state a claim and the case should be dismissed.

Northern District of Illinois Judge Lindsay Jenkins is expected to make a decision on whether the case moves forward or is dismissed any day now.

Copyright © 2025 WLS-TV. All Rights Reserved.

You May Also Like

Trump asks Supreme Court to intervene in bid to get California to set aside ballots from 20,000 alleged noncitizens

Trump Asks Supreme Court to Void 20,000 California Noncitizen Ballots

Update: The Supreme Court turned down the Trump administration’s request Monday evening.…
Roundabout Entertainment cuts 81 post-production jobs before New Year

Roundabout Entertainment Cuts 81 Post-Production Jobs Ahead of New Year

Hollywood’s wave of job cuts is continuing, with a popular Los Angeles-area…
Ukraine's Zelenskyy on defying US in attacking Russian oil: 'Our response must be painful'

Zelenskyy Vows Painful Response After Defying US on Russian Oil Strikes

— Ukrainian President Volodymyr Zelenskyy is rejecting calls from the Trump administration…
McDonald's CEO questioned over AI pricing tools by Elizabeth Warren, Democrats

McDonald’s CEO Faces Warren, Democrats’ Questions on AI Pricing

Sen. Elizabeth Warren and four other lawmakers are challenging McDonald’s use of…
Austin tech founder killed with wife and children in Florida jet crash had reached a $10M business milestone

Austin Tech Founder, Family Killed in Florida Jet Crash at $10M Mark

Adam Robinson, an Austin technology entrepreneur who died with his wife and…
Nithya Raman votes against Westside homeless encampment ban

LA Councilwoman Nithya Raman Opposes Westside Homeless Camp Ban

Los Angeles mayoral candidate Nithya Raman voted against prohibiting homeless encampments at…
Retired NYPD officer arrested after 'off with his head' post over Florida mosque expansion

Retired NYPD Officer Arrested Over Florida Mosque Expansion Threat

A retired NYPD officer living in Florida was arrested Monday after allegedly…
Hochul silent about women under attack in America's largest city as Dem candidate steers outrage elsewhere

Hochul Silent as Women Are Attacked in New York City While Democratic Candidate Focuses Elsewhere

New York leaders are facing growing demands for answers after two unrelated,…
Vicious ‘ankle biter’ mosquitoes capable of spreading dengue fever invade SoCal

‘Ankle Biter’ Mosquitoes Capable of Spreading Dengue Invade SoCal

These aggressive mosquitoes do not wait until dusk to bite—and they often…
'Monster' upstate teen convicted of strangling girlfriend, 14, who thought she was pregnant

Upstate Teen Convicted of Strangling 14-Year-Old Girlfriend in Pregnancy Scare

An upstate New York teenager has been convicted of strangling his girlfriend…
Indicted NJ Dem LaMonica McIver wins re-election bid despite ongoing ICE case

Indicted NJ Rep. LaMonica McIver Wins Re-Election Amid ICE Case

Democrat Rep. LaMonica McIver cruised to a second full term representing New…
Diva NYC judge tries to use status to dodge $150 in trash fines: 'I have trials every day'

NYC Judge Tries to Dodge $150 in Trash Fines, Citing Daily Trials

Brooklyn Supreme Court Justice Katherine Levine spent nearly two years contesting three…