

 
 Legal Sidebari 
 
Immigration Enforcement & the Anti-
Commandeering Doctrine: Recent Litigation 
on State Information-Sharing Restrictions  
Updated March 10, 2020 
Although the federal government is vested with exclusive power to regulate the entry and removal of non-
U.S. nationals (aliens), the impact of immigration is acutely felt in local communities. Some states and 
local governments have agreed to assist in the enforcement of immigration laws, such as by identifying 
and apprehending aliens for removal. Others have chosen not to assist in immigration enforcement efforts. 
In some cases, these states and localities have adopted measures—sometimes labeled “sanctuary” laws 
and policies—that limit cooperation between state or local law enforcement and federal immigration 
authorities. For instance, California’s SB-54 generally prohibits law enforcement agencies from using 
agency money or personnel to investigate, interrogate, detain, detect, or arrest persons for the purpose of 
immigration enforcement.  
State laws and policies restricting participation in immigration enforcement have come under scrutiny 
following the January 25, 2017 issuance of Executive Order 13768, which seeks to strengthen 
immigration enforcement. Section 9(a) of the Executive Order directs the Attorney General and the 
Secretary of the Department of Homeland Security to withhold federal grant funds to states and localities 
that fail to comply with 8 U.S.C. § 1373 (Section 1373). Section 1373 provides that “a Federal, State, or 
local government entity or official may not prohibit, or in any way restrict, any government entity or 
official from sending to, or receiving from, . . . [federal immigration authorities] information regarding 
the citizenship or immigration status, lawful or unlawful, of any individual.”  
After the issuance of the Executive Order, then-Attorney General Jeff Sessions announced new conditions 
on the receipt of federal funds under the Edward Byrne Memorial Justice Assistance Grant Program 
(Byrne JAG Program) for Fiscal Year 2017, including that recipients certify compliance with Section 
1373. The Byrne JAG Program grants federal funds to states, the District of Columbia, and territories for 
non-federal criminal justice initiatives. For Fiscal Year 2018, the Department of Justice added further new 
conditions on grant recipients, including certifying compliance with 8 U.S.C. § 1644 (Section 1644), 
which contains similar requirements to Section 1373 (Fiscal Year 2019 also requires grant recipients to 
certify their compliance with Sections 1373 and 1644).  
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In opposition to these new conditions, several states and localities sued, challenging the withholding of 
federal funds based on states and local governments allegedly failing to comply with Sections 1373 and 
1644. The plaintiffs claim Sections 1373 and 1644 unconstitutionally restrain states and localities from 
prohibiting law enforcement entities from sharing information with federal immigration authorities, 
reasoning that these statutory provisions constitute impermissible state coercion. Congress may be 
interested in this conflict between state and local information-sharing restrictions and Sections 1373 and 
1644 because it raises questions as to the extent that Congress, consistent with the anti-commandeering 
and related federalism principles, can facilitate information-sharing by states and localities with the 
federal government. 
The Supremacy Clause and the Anti-Commandeering 
Doctrine 
The Constitution establishes a system of dual sovereignty between the federal and state governments, 
including by providing for a national Congress with enumerated powers and, by way of the Tenth 
Amendment, expressly reserving those powers to the states that were not delegated to the federal 
government. But the Constitution’s Supremacy Clause declares that federal law is “the supreme Law of 
the Land.” Accordingly, when Congress exercises its enumerated powers, it may render unenforceable 
(preempt) otherwise valid state laws. The Supreme Court has repeatedly recognized that federal law 
preempts a broad range of state or local activities addressing immigration-related matters, though not 
every state enactment “which in any way deals with aliens is a regulation of immigration and thus per se 
preempted.” 
But there are constitutional constraints on the federal government’s ability to influence state or local 
activity, including under the anti-commandeering doctrine. The doctrine, rooted in the Tenth Amendment 
and the Constitution’s enumeration of Congress’s powers, instructs that “even where Congress has the 
authority under the Constitution to pass laws requiring or prohibiting certain acts, it lacks the power 
directly to compel the States to require or prohibit those acts” on behalf of the federal government. For 
example, in its 1992 decision New York v. United States, the Supreme Court struck down a federal law 
that required states to either (1) enact legislation disposing of radioactive waste generated within their 
borders; or (2) take title to and possession of the waste. And in 1997, Printz v. United States expanded on 
New York, holding that Congress’s command for state officials to implement a federal scheme of 
background checks on prospective handgun purchasers contravened anti-commandeering principles.  
More recently, in 2018, the Supreme Court addressed the anti-commandeering doctrine in Murphy v. 
National Collegiate Athletic Association. The Court struck down the Professional and Amateur Sports 
Protection Act (PAPSA)—which prohibited state and local governments from allowing gambling on 
sports activity—on the basis it was an impermissible coercion of state government. The Court reasoned 
that PAPSA compelled state legislation in violation of the Tenth Amendment by preventing state 
legislatures from rescinding existing gambling restrictions. Writing for the majority, Justice Alito 
described any distinction between a federal law directly instructing a state to take an affirmative act and 
one prohibiting state legislative activity as “empty,” explaining “[t]he basic principle—that Congress 
cannot issue direct orders to state legislatures—applies in either event.” 
States and Local Governments’ Challenges to Sections 
1373 and 1644 
In their challenges to the federal government’s withholding of the Byrne JAG Program funds, the state 
and local government plaintiffs generally raise three arguments: (1) the Attorney General lacks statutory 
  
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authority to place conditions on the receipt of Byrne JAG Program funds; (2) the executive branch 
usurped Congress’s spending power by dictating additional conditions beyond those imposed by 
Congress, thereby violating the principle of separation of powers; and (3) requiring compliance with 
Sections 1373 and 1644 commandeers state involvement in federal immigration enforcement in violation 
of the Tenth Amendment.  
While this litigation raises numerous legal questions, this Legal Sidebar focuses on anti-commandeering 
challenges to Sections 1373 and 1644. Specifically, the plaintiff states and localities claim the condition 
requiring certification of compliance with Sections 1373 and 1644 is unlawful because (1) these statutory 
provisions constitute commandeering; and (2) the availability of federal funds cannot be conditioned on 
complying with unconstitutional laws. Relying on Murphy, they contend Sections 1373 and 1644 
unconstitutionally dictate what a state legislature may not do—limit state and local officers from sharing 
immigration-related information with the federal government. To counter, the DOJ argues the anti-
commandeering doctrine does not apply to voluntary grant programs for which states and localities may 
decline to participate. Additionally, the DOJ argues that Sections 1373 and 1644 do not violate the 
doctrine because the statutory provisions are laws of general applicability and, alternatively, they fall 
within an information sharing exception that was arguably suggested by the Supreme Court in a few pre-
Murphy decisions. 
This conflict between these federal statutory provisions and state and local policies limiting information 
sharing raises questions of whether Sections 1373 and 1644 unconstitutionally dictate state legislative 
activity by barring states and localities from passing legislation restricting the voluntary exchange of 
information by local law enforcement and federal immigration authorities. Several district courts, as 
shown in Table 1, have issued permanent injunctions against the challenged statutes and funding 
conditions. A number of district courts held that Section 1373 is unconstitutional and therefore cannot 
serve as an applicable federal law to condition funds for purposes of the Byrne JAG Program. In the two 
cases that include a challenge to the FY 2018 condition requiring compliance with Section 1644, the 
district courts concluded Section 1644 was unconstitutional for the same reason. Regarding the other 
conditions, district courts have also held that the Attorney General lacked statutory authority under the 
Byrne JAG Program statutory scheme to impose additional conditions on the receipt of funds. In addition, 
a number of district courts have granted mandamus relief, thereby compelling the Attorney General to 
distribute withheld Byrne JAG Program funds. These decisions have been appealed to their respective 
circuit courts. 
Some circuit courts have weighed in on the matter. The Third Circuit issued a ruling, affirming the lower 
court’s ruling on different grounds and declining to address the anti-commandeering question. Reversing 
the lower court’s ruling, the Second Circuit held that Section 1373 does not raise commandeering 
concerns as applied to a funding condition. The other appeals remain pending.  
Of special note, in some of these cases, the reviewing court considered the continuing import of the 
Second Circuit’s decision in City of New York v. United States, which rejected an anti-commandeering 
challenge to Section 1373. Post-Murphy, some courts have called into question the appellate decision’s 
continued viability. Indeed, the U.S. District Court for the Southern District of New York concluded in 
2018 that “City of New York cannot survive Murphy.” But in a recent opinion reversing the district court 
decision, the Second Circuit found it unnecessary to address whether City of New York remains good law. 
The Second Circuit distinguished City of New York as involving a facial challenge to Section 1373 in 
contrast to an as applied challenge in this case. The viability of City of New York remains an open 
question. 
The outcome of current litigation may provide critical insight into the constitutionality of Sections 1373 
and 1644. 
  
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Table 1. Current Litigation: Tenth Amendment Challenges to Sections 1373 and 1644 
State and Local Government Challenges Byrne JAG Program Conditions 
Procedural 
Case 
Holding and Reasoning 
Remedy 
Posture 
Status 
City and County of San 
District court granted 
Francisco v. Sessions 
District court held that  
permanent nationwide 
Nos. 17-cv-4642,  
§ 1373 violated Tenth 
 
injunction and mandamus 
17-cv-4701  
Amendment as 
Argument 
relief compelling 
On appeal to 
N.D. Cal. 
commandeering and 
heard on 
distribution of funds; but 
9th Cir.  
 
therefore cannot serve as an 
Dec. 2, 2019. 
stayed nationwide scope 
 
City and County of San 
applicable federal law for 
Waiting for 
of injunction pending 
Francisco v. Barr 
funding.  
ruling. 
appeal.  
Nos. 18-17308, 18-17311  
Relied on Murphy. 
 
9th Cir. 
City and County of San 
District court granted 
Francisco v. Sessions 
District court held that  
permanent nationwide 
No. 18-cv-5146 
§§ 1373 and 1644 were 
injunction and mandamus 
Stayed 
N.D. Cal. 
unconstitutional under the 
relief compelling 
On appeal to 
pending 
 
Tenth Amendment’s anti-
distribution of funds; but 
9th Cir.  
completion of 
City and County of San 
commandeering principles. 
stayed nationwide scope 
 
appeal in case 
Francisco v. Barr 
Incorporated reasoning from 
of injunction pending 
above. 
No. 19-15947 
case above. 
appeal.  
9th Cir. 
 
District court granted 
permanent injunction 
enjoining the challenged 
conditions and granted 
injunction requiring 
District court held that  
Immigration and Customs 
Supreme Ct. 
§ 1373 violated the Tenth 
Enforcement (ICE) to 
3d Cir. ruled 
City of Philadelphia v. 
granted 
Amendment’s anti-
comply with city policy 
on appeal and 
Sessions 
extension 
commandeering principles. 
requiring ICE to seek a 
issued an 
No. 17-cv-3894 
until Nov. 21, 
Relied on Murphy. 
judicial warrant in order 
opinion on 
E.D. Pa. 
2019 to file a 
 
for the City to hold an 
Feb. 15, 2019. 
 
petition for a 
3d Cir. affirmed on different 
alien temporarily; issued 
 
City of Philadelphia v. 
writ of 
grounds, reasoning the 
declaratory judgment 
Request for 
Attorney General of the 
certiorari.  
conditions were imposed 
declaring the city 
circuit panel 
United States 
As of Mar. 9, 
without statutory authority. 
complied with § 1373; and 
rehearing 
No. 18-2648 
2020, no 
Did not address anti-
granted mandamus relief 
denied. 
3d Cir. 
petition has 
commandeering. 
compelling distribution of 
 
been filed. 
 
funds. 
 
3d Cir. affirmed, but 
vacated judicial warrant 
injunctive relief. 
 
 
City of Chicago v. 
Case was 
Sessions 
District court held that the 
argued and 
No. 17-cv-5720 
Attorney General cannot 
District court issued 
taken under 
N.D. Ill. 
impose compliance condition 
permanent nationwide 
  
advisement 
 
because § 1373 violates the 
injunction; but stayed 
On appeal to 
by Panel on 
City of Chicago v. Barr 
Tenth Amendment as 
No. 18-2885, 19-3290 
commandeering. 
nationwide scope of 
7th Cir. 
Apr. 10, 
permanent injunction. 
2019.  
(consolidated) 
Relied on Murphy. 
Waiting for 
7th Cir. 
 
ruling. 
 
 
  
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Procedural 
Case 
Holding and Reasoning 
Remedy 
Posture 
Status 
District court held that §1373 
District court granted 
States of New York v. 
was facially unconstitutional 
permanent injunction 
 
Department of Justice 
under anti-commandeering 
limited to parties in suit 
 Remanded 
Nos. 18-cv-6471, 
doctrine of Tenth 
and mandamus relief 
2d Cir. ruled 
to District 
18-cv-6474 (consolidated) 
Amendment. 
compelling distribution of 
on appeal and 
court for any 
S.D.N.Y. 
Relied on Murphy. 
funds. 
issued an 
further 
 
 
 
opinion on 
proceedings 
State of New York v. 
2d Cir. reversed, holding that 
2d Cir. vacated 
Feb. 26, 2020. 
consistent 
Department of Justice 
§ 1373 does not violate the 
permanent injunction and 
 
with the 2d 
Nos. 19-267,  
Tenth Amendment as applied 
mandate to distribute 
Cir. opinion 
19-275 (consolidated) 
in this case to a federal 
withheld funds.  
funding requirement. 
 
Appeal stayed 
pending 
State of Oregon v. Trump 
District court held that  
District court granted 
decision in 
No. 18-cv-01959 
§§ 1373 and 1644 are 
permanent injunction 
City & County 
D. Or. 
On appeal to 
unconstitutional under the 
limited to parties in suit 
of San 
 
9th Cir. 
State of Oregon v. Trump 
Tenth Amendment’s anti-
and mandamus relief 
 
Francisco v. 
commandeering principles. 
compelling distribution of 
Barr, Nos. 18-
No. 19-35843 
Relied on Murphy. 
funds. 
17308, 18-
9th Cir. 
17311 
 
Source: Congressional Research Service 
Preemption Challenge to State Information-Sharing 
Restrictions 
The litigation surrounding Sections 1373 and 1644 also includes a challenge by the United States to SB-
54, which regulates California’s participation in immigration enforcement by prohibiting involvement by 
law enforcement agencies. In particular, the information-sharing proscription in California’s SB-54, 
codified in Cal. Gov’t Code § 7284.6, prohibits local law enforcement from providing information 
regarding an individual’s release date from custody, as well as providing personal information, such as a 
home or work address. The United States requested the U.S. District Court for the Eastern District of 
California to enjoin SB-54’s prohibition on information sharing, claiming it contravenes Section 1373. In 
opposition, California maintained that Section 1373 is unconstitutional under Murphy because it dictates 
state legislative activity. The United States claimed Murphy is not governing precedent, arguing that the 
Tenth Amendment’s anti-commandeering principles do not hinder sharing information between the 
federal government and state and local governments. Although the district court remarked that the 
constitutionality of Section 1373 is “highly suspect,” it denied the United States’ requested relief on SB-
54’s information-sharing prohibition on the ground that it does not directly conflict with Section 1373. 
The district court observed that Section 1373 addresses the exchange of information on immigration 
status in contrast to SB-54’s prohibition on sharing release dates and personal information.  
The United States is also challenging three California laws governing the state’s regulation of private and 
public employers’ involvement in immigration enforcement, as well as measures requiring the state 
attorney general to inspect the circumstances and conditions in detention facilities housing aliens. 
Although the district court generally upheld the California sanctuary measures, the United States 
prevailed in arguing that two provisions unlawfully discriminate against employers who voluntarily 
cooperate with federal immigration authorities.  
  
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On appeal to the Ninth Circuit, the United States argued Section 1373 prohibits SB-54’s information-
sharing provisions, claiming Section 1373 impliedly applies to information beyond immigration status. 
The Ninth Circuit panel affirmed the denial of injunctive relief on SB-54, agreeing with the district court 
that Section 1373 and SB-54 do not conflict. While the circuit court generally affirmed the district court’s 
holdings on the other challenged state provisions, the United States prevailed in its argument that the 
district court erred when it denied the United States’s request to enjoin the AB-103 provision—codified in 
Cal. Gov’t Code § 12532—that requires the state attorney general to review the circumstances 
surrounding the apprehension and transfer of immigration detainees.  
Following the Ninth Circuit’s decision, the United States filed a petition for a writ of certiorari. Fully 
briefed, the Supreme Court has not yet issued a decision on the petition. 
Table 2. Current Litigation 
United States’s Challenge to SB-54’s Information-Sharing Restriction as Preempted 
Holding and 
Procedural 
Case 
Remedy 
Status 
Reasoning  
Posture 
Petition for writ of 
District Court denied 
certiorari filed with 
United States v. 
request for 
Supreme Court on 
District court held 
California 
preliminary injunction 
Oct. 22, 2019. 
that § 1373 does not 
No. 18-cv-490 
on SB-54. 
 
conflict with SB-54.  
9th Cir. ruled on 
E.D. Cal. 
 
Brief in opposition 
 
appeal and issued 
 
9th Cir. affirmed the 
filed on Dec. 20, 
9th Cir. affirmed, 
opinion on  
United States v. 
denial of motion for a 
2019. 
agreeing section  
Apr. 18, 2019. 
California 
preliminary injunction 
 
SB-54 does not 
No. 18-16496 
as to SB-54’s 
Reply brief filed on 
conflict with § 1373.  
9th Cir. 
information-sharing 
Jan. 2, 2020. 
restrictions. 
 
 
Source: Congressional Research Service 
 
 
 
Author Information 
 
Kelsey Y. Santamaria 
   
Legislative Attorney 
 
 
 
 
 
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