DOJ Sues Connecticut and New Haven Over Sanctuary Policies, Sending a Warning to Kentucky
The federal lawsuit targets limits on local cooperation with ICE, while Kentucky lawmakers and county jails are already moving in the opposite direction
On April 13, the U.S. Department of Justice sued Connecticut, Governor Ned Lamont, Attorney General William Tong, the City of New Haven, and Mayor Justin Elicker over what it calls sanctuary policies. The lawsuit challenges Connecticut’s Trust Act and New Haven’s welcoming-city policy, arguing that they interfere with federal immigration enforcement and violate the Supremacy Clause.
The case was filed in Connecticut. The warning reaches much farther.
This is not just a dispute over one state law. It is an effort to narrow the space where states and cities can decide how much they will participate in federal immigration enforcement. The administration is trying to turn limits on local cooperation into a legal target of their own.
A Case Designed to Redraw the Line
In the complaint, the Justice Department challenges several parts of Connecticut’s Trust Act. It objects to limits on when local officers can honor civil immigration detainers, restrictions on sharing custody and release information, limits on detention based on administrative warrants, barriers to ICE access to people in custody, and the state’s prohibition on 287(g) agreements.
The complaint also lays out the administration’s factual case. It says ICE issued 3,070 civil immigration detainers in Connecticut between 2020 and 2025, that fewer than 20 percent were honored, and that Hartford’s ICE office was tracking 403 active detainers dating back to 2020 while having picked up 181 inmates for transport during that period. Those figures come from the federal complaint, and they are there to support a broader legal argument: that refusal to help can be treated as unlawful interference.
That is the real significance of this filing. The administration is not simply objecting to local resistance. It is using federal court to redefine the relationship between Washington and local government.
The Line Connecticut Is Defending
Connecticut officials answered quickly. Attorney General Tong, Governor Lamont, and Mayor Elicker defended the Trust Act as a public-safety measure and argued that the state has the authority to decide how its own officers will participate. In a March 26 guidance memo, Connecticut said the Trust Act does not block federal agents from making arrests or carrying out their own enforcement actions. It sets rules for state and local law enforcement, not for ICE itself.
That is where the legal fight really sits.
The federal government is arguing that state and local limits cross the line into obstruction. Connecticut is arguing that it may decide the role its own officers will play. The state’s Trust Act guidance frames that position through the anti-commandeering principle, the idea that the federal government cannot simply require states to carry out federal policy.
In plain terms, the administration is trying to shrink the room states have to say no.
Kentucky Is Already on This Road
Kentucky is not Connecticut. On this issue, Kentucky is already moving the other way.
In January, Louisville Public Media reported that Kentucky Republican lawmakers had filed bills that would require or encourage more local participation in federal immigration enforcement, including proposals to bar sanctuary policies and require agreements with ICE to house people subject to immigration detainers.
That is why this lawsuit matters here. It shows how far the federal government is willing to go to pressure states and localities that set limits, at the same moment Kentucky lawmakers and local detention systems are already moving deeper into cooperation.
Kentucky’s role in immigration detention makes the stakes even more concrete. A 2026 report from the League of Women Voters of Kentucky found that more than 1,000 people were being held for ICE in Kentucky county jails as of February 5, 2026, with an average daily population of 1,041. The report said only 28 percent were identified as criminals, meaning most were not.
That moves this story out of the realm of distant federal politics.
It runs through county jails, sheriff’s offices, detention contracts, court access, and the daily treatment of people being held in Kentucky.
The broader state impact is measurable too. The U.S. Census Bureau reports that 4.7 percent of Kentucky residents were foreign-born in the 2020 to 2024 period, and 6.8 percent of Kentuckians age 5 and older spoke a language other than English at home. These are families, workers, students, church members, and neighbors whose daily lives can be shaped by a more aggressive enforcement climate.
The Levers Are Here at Home
The most important decision-makers for Kentucky readers are not in Connecticut.
Power sits with the Kentucky General Assembly, which can require deeper cooperation with ICE. It sits with county jailers and county governments that decide whether and how to hold people for federal immigration authorities. It sits with sheriffs and police departments that control local practices, information-sharing, and day-to-day contact with immigrant communities. It also sits with the governor and attorney general, who shape the state’s legal and administrative posture.
The pressure point is local as much as statewide.
When the federal government sues a state for setting limits, Kentucky officials can treat that as a road map. They can use it to justify broader cooperation, less transparency, and deeper detention arrangements. Or they can insist on clear standards, public oversight, and accountability for what is already happening inside Kentucky’s own institutions.
What This Fight Is Really Testing
This lawsuit is testing more than one law in one state.
It is testing whether federal immigration enforcement can treat non-cooperation itself as a legal violation. It is testing whether local governments are still allowed to draw a line between their own public-safety responsibilities and Washington’s enforcement agenda. And it is testing whether that line can survive when the pressure comes through litigation instead of speeches.
For Kentucky, the importance is practical.
If the administration succeeds in turning local limits into legal liabilities, the pressure on counties, cities, and states will only grow.
In a state where lawmakers are already pushing harder cooperation and county jails are already deeply involved, the result could be more detention, less local discretion, and fewer meaningful guardrails.
Where to Press Now
Start with county government. Ask your county jailer and fiscal court whether your county holds people for ICE, under what authority, with what oversight, and whether those detainees appear in public inmate listings.
Contact your state representative and state senator and ask whether they support requiring local governments and jails to deepen cooperation with ICE. Ask them to say plainly whether they support local discretion or mandatory participation.
Follow and support Kentucky groups already working in this space, including the ACLU of Kentucky, Kentucky Refugee Ministries, Maxwell Street Legal Clinic, Catholic Charities of Louisville’s immigration legal services, and local immigrant-support coalitions.
If you live in Louisville or another city with immigrant-serving institutions, ask local officials what policies are in place to protect access to schools, hospitals, shelters, and community services when federal enforcement intensifies. Louisville’s Office for Immigrant Affairs and related local service networks are one place to begin.
And keep asking the democratic question underneath the whole story: who decided that Kentucky’s local institutions should become an extension of federal immigration enforcement, and where did the public get to weigh in?
Sources / Further Reading
U.S. Department of Justice, “Justice Department Sues Connecticut, City of New Haven Over Sanctuary Policies”
https://www.justice.gov/opa/pr/justice-department-sues-connecticut-city-new-haven-over-sanctuary-policies
U.S. Department of Justice complaint in United States v. Connecticut et al.
https://www.justice.gov/opa/media/1435886/dl
Connecticut Attorney General, Governor, and New Haven Mayor response to the lawsuit
https://portal.ct.gov/ag/press-releases/2026-press-releases/joint-statement-on-lawsuit-filed-by-trump-administration
Louisville Public Media, “Kentucky GOP bills would require locals to work with ICE, ban sanctuary policies”
https://www.lpm.org/news/2026-01-14/kentucky-gop-bills-would-require-locals-to-work-with-ice-ban-sanctuary-policies
League of Women Voters of Kentucky, ICE Detention in Kentucky: An Initial Report
https://static1.squarespace.com/static/5da3dbee03dd2c4493abed8b/t/69b2bad0f245e642505847b6/1773320912349/Immigration%2BInitial%2BReport.LWVKY.Feb122026.pdf
U.S. Census Bureau QuickFacts: Kentucky
https://www.census.gov/quickfacts/fact/table/KY/PST045224