Supremacy Clause

A federal judge temporarily blocked New York from enforcing a law requiring federal immigration agents to unmask, citing constitutional supremacy clause and intergovernmental immunity doctrines. The ruling also upheld a New York law banning 287(g) agreements with Immigration and Customs Enforcement.

A federal judge ruled New York cannot ban federal agents from wearing face coverings or require visible identification, citing constitutional concerns under the supremacy clause. The decision follows a similar block of a California law and centers on federal versus state authority over law enforcement.

The U.S. government sued Milwaukee, its mayor, city attorney, and police chief over an ordinance banning law enforcement from wearing masks during public interactions, requiring visible identification. The lawsuit argues states cannot regulate federal actions, while Milwaukee claims it ensures accountability and public safety.

The U.S. government filed a lawsuit against Milwaukee challenging its ordinance prohibiting law enforcement from wearing masks while interacting with the public. The lawsuit argues that states cannot regulate federal law enforcement actions, citing constitutional principles. Milwaukee's ordinance requires officers to be facially identifiable with their names and agency on uniform, while the city attorney disputes federal claims of immunity under the Supremacy Clause.

Civil rights groups, including the ACLU and National Immigration Law Center, have renewed their legal challenge against a Tennessee law that criminalizes illegal immigration by making it a misdemeanor for noncitizens to remain in the state over 90 days after a deportation order. The lawsuit, filed on behalf of two long-term Tennessee residents, seeks to block the law and claims it violates the Supremacy Clause by encroaching on federal immigration authority.

Milwaukee's law banning masked law enforcement has led to a legal conflict with Immigration and Customs Enforcement (ICE), which refuses to comply. The city attorney, Evan Goyke, supports the ordinance, citing public safety and accountability concerns, while ICE cites the Supremacy Clause to justify noncompliance. A specific case involving the arrest of Giovanni Sosa by masked ICE agents highlights the tensions.

The U.S. Department of Justice has filed 27 lawsuits since January 2025 against 20+ cities, counties, and states over sanctuary policies that restrict cooperation with federal immigration enforcement. Jurisdictions like Connecticut, Maryland, New York, and Philadelphia are among those sued for limiting ICE agents' activities in public spaces and requiring identification. The DOJ argues these policies violate constitutional principles, while advocates claim they protect community trust and assert states' rights.

The U.S. Department of Justice has filed 27 lawsuits against cities, counties, and states with sanctuary policies that restrict cooperation with federal immigration enforcement. The lawsuits target jurisdictions including Connecticut, Maryland, New Jersey, New York, a Michigan county, and Philadelphia, with the federal government arguing these policies violate constitutional precedent. Advocates claim the policies aim to build community trust, while the Justice Department asserts states cannot obstruct federal law enforcement.

Republican legislative leaders and Arizona Attorney General Kris Mayes are defending a 2024 law (Proposition 314) that authorizes state judges to issue deportation orders and local police to arrest migrants. The Florence Immigrant and Refugee Rights Project sued the state, arguing the law violates the Supremacy Clause by conflicting with federal immigration authority. The law could take effect by July 14, pending a court hearing on a potential block.

The U.S. Department of Justice has filed 27 lawsuits against 20+ cities, counties, and states since January 2025 for implementing sanctuary policies that restrict cooperation with federal immigration enforcement. Jurisdictions targeted include Connecticut, Maryland, New Jersey, New York, a Michigan county, and Philadelphia, with disputes centering on constitutional authority and federal law enforcement access.

The U.S. Department of Justice has filed 27 lawsuits against 20 cities, counties, and states since 2025 for implementing sanctuary policies that restrict cooperation with federal immigration enforcement. These policies include limiting ICE agents' activities in public spaces, barring mask-wearing by immigration officers, and preventing local law enforcement from assisting federal authorities in immigration enforcement.

The U.S. Department of Justice has filed 27 lawsuits against 20+ cities, counties, and states since January 2025 targeting sanctuary policies that restrict cooperation with federal immigration enforcement. Jurisdictions like Connecticut, Maryland, New Jersey, New York, a Michigan county, and Philadelphia are among those sued for limiting ICE agents' activities in public spaces and requiring identification. The Trump administration argues these policies violate constitutional precedents, while advocates claim they enhance community trust and public safety.

Milwaukee has banned ICE masks, raising legal questions as courts have not yet defined the limits of the Supremacy Clause on states' authority over federal officers.

The U.S. Department of Justice (DOJ) rebuked Milwaukee officials for a local mask ban targeting federal immigration agents, calling the ordinance unconstitutional under the Supremacy Clause. The DOJ argued the ban would endanger officers by exposing them to harassment and hindering enforcement, while Milwaukee officials defended the policy to protect residents from unidentifiable law enforcement.

A federal judge blocked Virginia from enforcing a law prohibiting ICE agents from wearing masks during enforcement operations, siding with the Department of Justice in a dispute over federal authority. The judge ruled the law likely violates the Constitution's Supremacy Clause by regulating federal officers.

A federal judge blocked Virginia's law prohibiting ICE agents from wearing masks during enforcement operations, ruling it violates the Constitution's Supremacy Clause by regulating federal officers. The Department of Justice secured a preliminary injunction to prevent the law from taking effect while legal challenges continue.

The Justice Department is seeking to block a Virginia law that prohibits ICE agents from wearing masks on the job, arguing it violates the supremacy clause and intergovernmental immunity. The law, signed by Governor Abigail Spanberger, aims to promote transparency in law enforcement but faces legal challenges over federal authority.

A federal judge dismissed a Justice Department lawsuit against Newark, Jersey City, Paterson, and Hoboken, which were accused of violating the Supremacy Clause through their 'sanctuary city' policies. The DOJ claimed these policies conflicted with federal immigration enforcement.

Kalshi, a prediction market platform, sued Illinois officials over a new state law imposing a 15% tax on sports-related wagers. The company argues the law violates the supremacy clause by conflicting with federal regulation of derivatives overseen by the Commodity Futures Trading Commission.

The Department of Homeland Security accuses Minnesota officials of staging a 'political stunt' by prosecuting an ICE agent, Gregory Morgan Jr., for allegedly pointing a gun at motorists during a traffic confrontation. Federal authorities argue Morgan is protected under the Supremacy Clause, while Minnesota prosecutors claim his alleged actions fell outside legitimate federal duties. The dispute centers on jurisdiction between state and federal courts.

The Justice Department sued Virginia over two laws requiring federal agents to remove masks and display identifying information, claiming they violate the Constitution and threaten officer safety. The lawsuit names Virginia Governor Abigail Spanberger, Attorney General Jay Jones, and Fairfax County Commonwealth Attorney Steve Descano, who supported laws set to take effect in July.

GEO Group, a company operating immigrant detention facilities in Colorado, sued the state to block enforcement of House Bill 1276, which mandates health and safety inspections of such facilities. The law, signed by Gov. Jared Polis, requires additional inspections and police training on immigration enforcement compliance. GEO argues the law violates federal preemption and contractual rights under the U.S. Constitution.

The ACLU and National Immigration Law Center filed a federal lawsuit challenging a new Tennessee law that criminalizes illegal immigration, arguing it violates the Supremacy Clause by usurping federal immigration enforcement powers. The law, part of Tennessee's GOP 'Immigration 2026' agenda, would make it a state crime for noncitizens to enter or remain in the state after a federal deportation order.

Federal healthcare laws, such as the Affordable Care Act (ACA), take precedence over state laws under the Supremacy Clause, but conflicts persist, particularly in Medicaid expansion. While the ACA reduced the uninsured population from 48.6 million in 2010 to 29.3 million in 2017, legal challenges and policy changes, including the 2025 Reconciliation Law, have created ongoing disputes over coverage and subsidies, leaving millions without insurance in non-expansion states.

The Department of Justice filed lawsuits against Maine, Massachusetts, Oregon, and Washington after these states refused to issue undercover license plates to ICE agents. The DOJ claims the states' refusal violates the Constitution's Supremacy Clause and discriminates against federal law enforcement, while the states argue they are not obligated to assist with civil immigration enforcement.

The Department of Justice filed lawsuits against four states—Maine, Massachusetts, Oregon, and Washington—over their refusal to issue undercover license plates to ICE agents. The DOJ claims the states' refusal violates the Constitution's Supremacy Clause by unlawfully discriminating against federal law enforcement, while the states argue they are not obligated to assist with civil immigration enforcement.

The Justice Department is threatening to sue four Democratic-led states (Maine, Massachusetts, Washington, and Oregon) for refusing to issue undercover license plates to ICE agents, arguing they violate the Supremacy Clause. Legal experts debate whether the states are simply refusing to assist federal immigration enforcement or actively obstructing federal authority, with questions about the strength of DOJ's constitutional argument.

The Justice Department is threatening to sue four Democratic-led states (Maine, Massachusetts, Washington, and Oregon) for refusing to issue undercover license plates to ICE agents, arguing this violates the Supremacy Clause. The states contend they only restrict undercover plates for civil enforcement cases, applying the same rules to state and local agencies, while the DOJ claims this obstructs federal immigration enforcement.

A federal appeals court blocked California's laws requiring ICE agents to display identification and avoid wearing masks during operations, ruling the state overstepped its authority under the Supremacy Clause. The decision marked a legal victory for the Trump administration against Democratic Gov. Gavin Newsom's immigration policies.

A federal appeals court blocked California's law requiring ICE agents to display identification and avoid masks during operations, ruling the state overstepped its authority under the Supremacy Clause. The decision, involving two Trump-appointed judges, marks a legal victory for the Trump administration against Democratic Gov. Gavin Newsom's immigration policies.

The U.S. Justice Department sued Connecticut and New Haven over sanctuary policies, alleging they violate federal immigration laws. Defendants include state officials Ned Lamont and William Tong, and New Haven Mayor Justin Elicker, who deny wrongdoing and claim their policies are legal.