Chicago has hauled the Trump administration into federal court, asking a judge to unlock roughly $3.1 billion in transit grants that city officials say were lawfully awarded and then abruptly frozen. The complaint, filed by the Chicago Transit Authority, says the money is earmarked for projects to modernize and expand the city’s elevated and underground train network, the “L,” and warns the freeze is squeezing construction schedules and threatening local jobs. City attorneys say they turned to litigation after months of stalled planning and uncertainty.
The CTA’s complaint, lodged in U.S. District Court in Chicago, says the grants were approved during the Biden administration but were frozen by the White House in 2025, according to Reuters. The suit argues that the pause has stranded multiple long-planned projects in limbo and asks a judge to restore access to the awards.
Which projects are at risk
Federal officials had already flagged billions in Chicago transit grants for administrative review, including a $2.1 billion pause that put the long-planned Red Line Extension and Red-Purple Modernization work on ice and left contractors waiting for clarity. That October 2025 pause, officials said, grew out of a review of contracting practices tied to diversity and equity provisions and immediately pushed back timetables and project mobilization, as reported by Axios. City leaders say the larger pool of frozen grants now at issue spans multiple phases of systemwide modernization.
What the suit says
The filing accuses the federal government of trying “to hold hostage billions of dollars in federal grants for crucial infrastructure projects in the city of Chicago,” quoting directly from the complaint, per Reuters. The lawsuit also stresses that the awards were signed off on under the prior administration and argues the freeze is disrupting planning, procurement, and jobs tied to long-running upgrades.
Part of a broader legal fight
Chicago’s case joins a growing stack of lawsuits from cities and transit agencies after the administration began reviewing and, in some instances, withholding previously approved grants. Earlier this month, New York’s Metropolitan Transportation Authority sued after the federal government held back nearly $60 million for Second Avenue Subway work, according to The Associated Press. Municipal lawyers say the disputes are building into a patchwork of legal tests that will help determine whether major infrastructure projects stay on track or slide further behind.
What comes next
The case now moves onto the federal docket in Chicago, where lawyers for both sides are expected to file motions and hammer out a briefing schedule. How quickly the judge moves will shape whether contractors can get back to work, whether delayed timelines can be salvaged, and how deeply the freeze cuts into local hiring and procurement.
For Chicago riders and transit workers who have waited years for long-promised upgrades, the lawsuit is a pivotal gamble: city leaders are asking a federal court, rather than a political process they say has stalled, to decide the fate of billions in “L” investment.
