Texas SB 4, ICE Agreements, and What Kentucky Should Watch

The current lawsuit gives Kentucky readers a way to understand future fights over ICE agreements, local law enforcement, and state immigration bills.

May 05, 2026

People keep seeing different versions of the same story.

A state passes an immigration enforcement law. A court blocks it. Another court lets part of it move forward. Civil-rights groups sue again. Local police, sheriffs, jailers, judges, and state officials are suddenly part of a legal fight many people assumed belonged only to the federal government.

That is what is happening with Texas Senate Bill 4. The latest development came on May 4, 2026, when the ACLU, ACLU of Texas, and Texas Civil Rights Project filed a new class-action lawsuit seeking emergency relief before several provisions of the law are set to take effect May 15. The lawsuit challenges parts of Texas SB 4 that would let state and local officials arrest, detain, prosecute, and remove people under a state-created immigration enforcement system.

Kentucky does not have Texas SB 4. But Kentucky already has local agencies working with ICE, county jails holding ICE detainees, and state bills filed this year that would require more local participation in federal immigration enforcement.

That is why the Texas case is worth understanding here. It shows how immigration enforcement can shift from federal offices into police departments, jails, courtrooms, county budgets, and local public meetings.

Texas SB 4 is not Kentucky law, but the case shows how immigration enforcement can move through local police, courts, jails, and county government.

The confusion starts with who is allowed to enforce immigration law

Immigration enforcement is usually federal. Agencies such as U.S. Immigration and Customs Enforcement, Customs and Border Protection, and U.S. Citizenship and Immigration Services operate under federal law. State and local police may have contact with immigrants through traffic stops, arrests, jail bookings, or local investigations, but they do not normally run their own deportation system.

That is the line Texas SB 4 tries to cross.

The Texas law creates state crimes related to illegal entry and reentry. It also creates procedures that allow state judges to order people removed to Mexico. The complaint filed on May 4 describes the law as a system where Texas creates its own immigration crimes, state police make arrests, state prosecutors bring charges in state courts, and state judges order removal.

That is why the fight is larger than one state. If Texas can create a state-level immigration enforcement system, other states may try to copy the model. If courts stop Texas, state lawmakers elsewhere may still look for narrower versions that pull local agencies deeper into federal immigration enforcement.

Kentucky already has that second kind of issue.

The question here is not whether Kentucky has copied SB 4 exactly. It has not.

The question is how much state and local government should be required to participate in immigration enforcement that starts with federal authority but depends on local institutions to operate.

Texas SB 4 builds a state immigration pipeline

The easiest way to understand SB 4 is to follow the path a person could move through.

First, a state or local officer suspects someone entered Texas from another country without federal authorization. Under SB 4, that suspicion can lead to arrest or detention under state law. The ACLU says the law would allow local and state law enforcement to arrest, detain, and remove people they suspect entered Texas without federal authorization.

Second, the case moves into state criminal court. That is a major shift. Immigration status is normally handled through federal immigration proceedings. SB 4 creates state crimes and gives state prosecutors a role in a system tied to immigration enforcement.

Third, a state magistrate or judge may issue a removal order. The ACLU’s May 4 release says the lawsuit seeks to block the power given to magistrates to issue deportation orders, the crime of failing to comply with those orders, and the requirement that magistrates continue prosecution even when a person has a pending federal immigration case.

Fourth, the person may face removal to Mexico. The complaint says the law allows state judges to order deportation to Mexico regardless of nationality.

That is the pipeline: suspicion, arrest, state prosecution, state removal order, attempted removal.

The legal fight centers on whether a state can build that pipeline when immigration enforcement has traditionally belonged to the federal government.

The new lawsuit tries to block four parts of the Texas system

The May 4 lawsuit is not a general statement of opposition. It targets specific provisions.

The plaintiffs are asking the federal court to block Texas Penal Code Sections 51.03 and 51.04 and Texas Code of Criminal Procedure Articles 5B.002 and 5B.003. Those provisions are tied to illegal entry, illegal reentry, and removal-order procedures.

The ACLU describes four main targets: the reentry crime, magistrates’ power to issue deportation orders, the crime of failing to comply with those orders, and the requirement that magistrates continue prosecution even when someone has a pending federal immigration case.

That detail is important for readers trying to interpret future headlines. A lawsuit may not block an entire law. A court order may stop only certain sections. A procedural ruling may let a law move forward without deciding whether the law is constitutional.

That is what happened before this latest lawsuit. The ACLU says the full Fifth Circuit vacated a prior preliminary injunction on standing grounds and did not reach the core constitutional question: whether SB 4 violates the Supremacy Clause by taking power assigned to the federal government.

Standing can sound like legal shorthand, but the plain-language meaning is simple: the court decided the earlier plaintiffs were not the right parties to bring that challenge. It did not decide that SB 4 is constitutional.

The new lawsuit is designed to address that procedural problem by bringing individual plaintiffs who say they may be directly affected by the law. The ACLU says one plaintiff is a lawful permanent resident and another has been approved for a U visa after becoming the victim of a crime and helping law enforcement resolve the case.

Kentucky’s version runs through ICE partnerships, not a state deportation law

Kentucky does not currently have a state law that mirrors Texas SB 4 by creating state crimes for illegal entry or giving Kentucky judges deportation authority.

Kentucky’s more immediate issue is local participation in federal immigration enforcement.

That usually happens through ICE agreements, jail contracts, detainers, jail booking processes, and local cooperation policies. The federal 287(g) program allows ICE to delegate certain immigration enforcement functions to state and local law enforcement officers. Kentucky bills filed in the 2026 session specifically referenced ICE’s Jail Enforcement Model, Task Force Model, and Warrant Service Officer Model.

Those models work differently.

The Jail Enforcement Model operates inside jails or detention facilities. Local officers identify and process people who may be removable while they are already in custody.

The Task Force Model allows state and local officers to exercise limited immigration authority while performing routine police duties. That model matters because it can bring immigration enforcement closer to traffic stops, patrol work, and ordinary policing.

The Warrant Service Officer Model allows local officers to serve and execute ICE administrative warrants on people already in custody.

In Kentucky, the model determines where immigration enforcement enters local government. A jail-based agreement affects people booked into detention. A task-force model can affect people during everyday encounters with law enforcement. A warrant-service model sits somewhere in between, focusing on people already in local custody.

A reader watching Kentucky should ask which model is being proposed, which agency would implement it, and where the authority would operate.

Share this explainer with someone watching ICE agreements, local law enforcement, or Kentucky state policy.

The Kentucky decision points are local, state, and administrative

In Kentucky, immigration enforcement can expand without one dramatic law.

A county jail can contract to hold ICE detainees. A sheriff’s office or detention center can enter a 287(g) agreement. The Kentucky State Police could be required to participate if legislation passes. A city can change how long it holds someone when ICE asks. A state bill can require local agencies to cooperate or restrict local policies that limit cooperation.

LPM reported in January 2026 that Kentucky lawmakers had filed at least five bills designed to encourage or require more local and state participation in immigration enforcement. The same report said at least four bills sought to encourage or require law enforcement agencies in Kentucky to assist ICE, and that one bill would make it a crime to seek or do work while undocumented.

The introduced version of Senate Bill 86 would have required each local law enforcement agency and the Kentucky State Police to enter written agreements with ICE to participate in the Jail Enforcement Model, Task Force Model, and Warrant Service Officer Model.

That is a specific operating requirement. It is not a slogan. The bill tells agencies to sign agreements, names specific ICE models, and turns federal immigration enforcement into a state and local duty.

That is where decisions are made in Kentucky: the General Assembly, the Governor’s office if a bill reaches his desk, Kentucky State Police leadership, county jailers, sheriffs, fiscal courts, city officials, and local police departments.

Jails are already part of Kentucky’s immigration system

The Texas SB 4 fight is focused on state criminal law and state removal orders. Kentucky’s current story is more jail-centered.

A March 2026 analysis reported by News From The States found 1,041 people held for ICE in Kentucky jails as of February 5. The jails listed included Boone County Jail, Campbell County Detention Center, Christian County Jail, Grayson County Detention Center, Hopkins County Jail, Kenton County Detention Center, and Oldham County Detention Center, among others.

That same report said five of the local jails with significant ICE detainee populations were overcrowded: Grayson, Christian, Daviess, Kenton, and Boone. Grayson County Jail was reported to be about 42 percent over capacity as of February 19.

Kentucky Center for Economic Policy reported that, as of February 2026, 24 local law enforcement groups had signed 287(g) agreements and 11 county jails were contracting with ICE to hold detainees. The group also said that was an increase of 10 additional law enforcement groups and two more county jails in the preceding few months.

Those numbers help explain how federal immigration enforcement reaches Kentucky communities. It may appear as a federal policy, but the work can happen in county buildings, local budgets, staffing plans, jail population reports, and fiscal court meetings.

Discretion sits in the parts people rarely watch

The public usually hears the loudest version of immigration policy: a governor’s statement, a lawsuit, a bill title, or a campaign promise. The working decisions often sit lower in the system.

A county jailer may decide whether to pursue or maintain an ICE agreement. A fiscal court may approve budgets, staffing, jail contracts, or reimbursements. A sheriff may decide whether to seek a 287(g) agreement. A police department may decide how officers respond when federal agents ask for help. State lawmakers may decide whether local participation stays optional or becomes mandatory.

Discretion also appears in timing. A bill that sits in committee may go nowhere. A bill that moves quickly near a deadline can reshape local authority before the public catches up. A 287(g) agreement may be signed with little public discussion unless residents ask for the document, attend meetings, and press officials for numbers.

The Texas SB 4 lawsuit shows another place discretion matters: who gets to sue. When a court dismisses a case on standing, it may leave the law alive without deciding whether the law itself is valid. That is why the May 4 lawsuit names individual plaintiffs and seeks emergency relief before the May 15 effective date.

A procedural ruling can change the practical landscape even when the constitutional question remains unresolved.

The system can shift through legislation, contracts, court orders, and local practice

There are four main ways this area can change.

The first is legislation. Texas used state law to create a new immigration enforcement system. Kentucky lawmakers have proposed bills requiring state and local participation in ICE programs. If a bill mandates participation, local discretion shrinks.

The second is contracts and agreements. A county jail or local law enforcement agency may enter into an ICE agreement even without a new state law. That can change training, duties, booking processes, warrant service, jail population, and local exposure to federal immigration enforcement.

The third is litigation. A court can block a law before it takes effect. A court can lift an injunction. A court can dismiss a case for procedural reasons. A court can decide the constitutional question. Each outcome has a different practical effect.

The fourth is local practice. A city may change its jail-hold policy. A police department may change how it shares information. A jail may change how it processes people for ICE. Those changes may not make national news, but they can affect real people quickly.

Kentucky readers should watch all four. The next important development may be a court ruling in Texas, a bill in Frankfort, a 287(g) agreement signed by a county agency, or a local policy change in a jail or police department.

How to read future headlines without getting lost

When a new headline appears, look first at what the policy would do.

If the headline says a state immigration law was “allowed to proceed,” check whether the court decided the constitutional issue or only a procedural issue like standing. The Fifth Circuit’s recent action in the SB 4 fight was procedural, according to the ACLU. It did not answer whether the law violates the Supremacy Clause.

If the headline says a state is “partnering with ICE,” ask which model is involved. Jail Enforcement Model, Task Force Model, and Warrant Service Officer Model do not operate the same way. In Kentucky’s SB 86 filing, those models were defined separately, and each one places immigration authority in a different setting.

If the headline says a county is holding ICE detainees, ask whether the jail is being paid, how many people are held, whether the jail is overcrowded, and who approved the arrangement. In Kentucky, ICE detention already involves county jails and local elected officials, not only federal agencies.

If the headline says lawmakers are banning “sanctuary policies,” ask what local policy they are actually targeting. LPM reported that Kentucky lawmakers were targeting policies they labeled as sanctuary policies even though no Kentucky city or county was listed as a “sanctuary jurisdiction” in a DOJ release cited in the article.

That is how to separate real movement from noise. Look for authority, implementation, funding, documents, and deadlines.

How to Use This

Watch for court orders in the Texas SB 4 lawsuit. The most important immediate signal is whether a federal judge blocks the challenged provisions before May 15. A temporary restraining order would pause enforcement. A denial could allow parts of the law to take effect while litigation continues.

Watch for Kentucky bills that mandate ICE participation. The strongest signal is not a speech or press release. It is bill text requiring local agencies or Kentucky State Police to enter written agreements with ICE, especially if the bill names the Jail Enforcement Model, Task Force Model, or Warrant Service Officer Model.

Watch for new 287(g) agreements in Kentucky. A county sheriff, jailer, detention center, or police department signing an agreement can change local enforcement even without a new state law.

Watch for jail population and budget changes. If a county jail increases ICE detention while already overcrowded, the issue becomes local governance: staffing, conditions, revenue, liability, and public oversight.

Watch for local policy changes. Pay attention when a city, jail, sheriff’s office, or police department changes how long people are held, how information is shared, or how officers respond to ICE requests.

Concrete actions are available. Ask county judge-executives, jailers, sheriffs, magistrates, and city officials whether their agency has an ICE agreement, which model they use, how many people are held for ICE, how much revenue is received, whether the jail is overcrowded, and what written policies govern cooperation. Ask state legislators whether they support mandatory local participation in ICE programs. Ask for the documents before the vote, not after the decision has already been made.

Dispatches from Kentucky

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