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Preemption Constitutional Challenges

McDermott Will & Emery

No Supremacy Clause Preemption Where State Statute Doesn’t Conflict With Federal

The US Court of Appeals for the Fifth Circuit explained that ordinarily, when state law contradicts with federal law, the state law may be preempted by the federal law under the US Constitution’s Supremacy Clause. However,...more

Jenner & Block

Amicus Brief Filed on Behalf of the Fort Mojave Indian Tribe Urging SCOTUS to Protect Tribal Sovereignty

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Jenner & Block filed an amicus brief before the Supreme Court of the United States on behalf of the Fort Mojave Indian Tribe in South Point Energy Center LLC v. Arizona Department of Revenue. The brief calls on the Court to...more

Vinson & Elkins LLP

Trump Administration Sues New York and Vermont Over Climate Superfund Legislation

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On May 1, 2025, the federal government brought separate suits against both New York and Vermont alleging that these state’s “climate Superfund” statutes are unconstitutional on multiple grounds. In two nearly identical...more

Mintz

Trump Administration Files Preemptive Lawsuits Against Hawaii and Michigan to Block Climate Change Litigation

Mintz on

Recently, both the State of Hawaii and the State of Michigan had announced that they would be pursuing litigation against fossil fuel companies concerning alleged damages stemming from the companies' contribution to climate...more

Shipman & Goodwin LLP

A New Challenge to Mandatory Labor Peace Agreements Is Filed While Another Is Dismissed

Shipman & Goodwin LLP on

On April 14, 2025, a cannabis retailer filed suit to challenge the provision of New York’s cannabis law that requires licensed businesses to maintain labor peace agreements with their workers. The New York lawsuit asserts...more

Brownstein Hyatt Farber Schreck

Recent State Enforcement Actions Take Aim at Sports-Based Event Contracts

In recent months, numerous online commodity trading markets have begun to offer sports-based event contracts concerning the outcome of various sporting events. These event contracts—which are a type of derivative...more

Holland & Knight LLP

FERC Chairman Chides PJM Over Preemption Dispute on Regional Transmission Project

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During the Federal Energy Regulatory Commission's (FERC) open meeting on April 17, 2025, Chairman Mark Christie vigorously criticized PJM Interconnection LLC (PJM) for arguing that its regional transmission project approval...more

Husch Blackwell LLP

Guns, Liability, and the Law: Why the Gustafson Decision Matters

Husch Blackwell LLP on

The Protection of Lawful Commerce in Arms Act (PLCAA) has long been a cornerstone of protection for firearms manufacturers and sellers, shielding them from liability when their products are misused in crimes. But recent...more

K&L Gates LLP

Natural Gas Bans: From New York to Washington, Courts Shift the Landscape on Legality of State and Local Gas Bans

K&L Gates LLP on

Following the election wins we reported on in November 2024, state and local bans on the use of natural gas remain a highly litigated issue across the country. In this alert, we cover two recent cases dealing with local and...more

Fenwick & West LLP

Trump Takes Aim At State Climate Change Laws

Fenwick & West LLP on

On April 8, 2025, President Donald Trump issued an executive order “aimed at securing America’s energy dominance by removing unlawful and burdensome state-level impediments to domestic energy production.”...more

Pillsbury Winthrop Shaw Pittman LLP

The Battle Over Climate Superfund Laws: Legal Challenges in Vermont and New York

States are increasingly turning to “Climate Superfund” laws as a potential mechanism to offset the growing costs of climate-related disaster recovery and the construction of more climate change-resilient infrastructure. These...more

Shipman & Goodwin LLP

Idaho Federal Judge Warns of Conflicts Between Restrictive Abortion Laws and EMTALA

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In a 60-page decision issued on March 20, 2025, Judge Lynn Winmill, a Federal District Judge for the District of Idaho, granted a preliminary injunction that enjoins Attorney General Raúl Labrador and his officers, employees,...more

Akerman LLP - Health Law Rx

Idaho’s Defense of Life Act and EMTALA: For Now, a Federal Court Permits an Idaho Health System to Stabilize Pregnant Patients...

An Idaho federal court has resolved the tension between that state’s restrictive abortion law and the federal Emergency Medical Treatment & Labor Act (EMTALA) in favor of a hospital system’s obligation to stabilize pregnant...more

Mintz

[Podcast] Mintz on Air: Practical Policies - Bridging the State and Federal DEI Chasm

Mintz on

In the latest episode of the Mintz on Air: Practical Policies podcast, Member Jen Rubin hosts a conversation on the divide between state and federal DEI initiatives. This episode is part of a series of conversations designed...more

Mintz - Employment Viewpoints

Mintz on Air: Practical Policies - Bridging the State and Federal DEI Chasm

In the latest episode of the Mintz on Air: Practical Policies podcast, Member Jen Rubin hosts a conversation on the divide between state and federal DEI initiatives. This episode is part of a series of conversations designed...more

Sheppard Mullin Richter & Hampton LLP

Mandatory Captive Rules in Limbo for California Employers – 2 Federal Lawsuits Challenge SB 399 and Looming Issue Before the NLRB

As discussed in our recent article, the introduction of SB 399 in California (approved and added as California Labor Code section 1137) sparked significant discussion and concern among California employers with union...more

Perkins Coie

California Court of Appeal Casts Doubt on Legality of Municipality’s Voter ID Law

Perkins Coie on

Earlier this month, a California appellate court issued an order in People v. Huntington Beach indicating that California’s intermediate appellate court will hold that there is a limit on the power of localities to manage...more

Ogletree, Deakins, Nash, Smoak & Stewart,...

Supreme Court Says Alabama’s Exhaustion of State Processes Rule Unlawfully Blocked Due Process Claims

On February 21, 2025, the Supreme Court of the United States ruled that an Alabama rule requiring claimants to first exhaust the state administrative appeals process before bringing due process claims over delays in their...more

Jenner & Block

Client Alert: New York Ushers in New Era of Climate Liability and Litigation with the Climate Change Superfund Act

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On February 6, 2025, twenty-two states and four energy industry organizations and businesses filed a lawsuit challenging New York’s “climate superfund” law. This law, signed on December 26, 2024 by New York Governor Kathy...more

Perkins Coie

California Senate Bill 399: Captive Audience Law Challenged in Federal Lawsuit

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As of January 1, 2025, Senate Bill (SB) 399, the California Worker Freedom from Employment Intimidation Act (the Act), prohibits employers from subjecting or threatening to subject employees to discrimination, retaliation,...more

Blank Rome LLP

Illinois Loses First Shot at Interchange Fees on State and Local Taxes

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Illinois enacted a law that prohibits a credit card holder’s bank from charging or receiving interchange fees on the portions of transactions that include Illinois state or local taxes and gratuities, in effect starting July...more

Troutman Pepper Locke

Federal Appeals Court Deals Another Blow to Intoxicating Hemp Products in Virginia

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On January 7, the U.S. Court of Appeals for the Fourth Circuit found that Virginia’s hemp product restrictions do not violate federal law. The ruling is the latest defeat for the Virginia hemp industry’s efforts to overturn...more

Vicente LLP

Virginia’s ‘Total THC’ Hemp Law Upheld by Fourth Circuit: What It Means for the Hemp Industry

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On January 7, 2025, the Fourth Circuit Court of Appeals issued its long-awaited decision in Northern Virginia Hemp & Agriculture v. Commonwealth of Virginia, holding that Virginia could implement “total THC” standards for...more

Troutman Pepper Locke

U.S. Supreme Court Declines to Overturn New York’s Affordable Broadband Act

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The U.S. Supreme Court closed out 2024 by confirming states’ authority to regulate internet service providers. On December 16, 2024, the Court denied certiorari in New York State Telecommunications Association, Inc., et al....more

Weintraub Tobin

Lawsuit Filed by CA Chamber of Commerce: Challenging Senate Bill 399

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This is a follow-up to our recent blog post regarding Senate Bill 399 (“SB 399”) and its prohibition on an employer’s right to take adverse action against an employee who refuses to attend meetings related to “political...more

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