Ian HeathGershengorn

Jenner & Block's appellate lawyers review the most consequential cases from the 2025–2026 Supreme Court term. This session covers high-profile decisions and pending matters addressing presidential power, agency independence, birthright citizenship, voting rights, and other significant constitutional and federal law questions before the Court.

Chambers USA 2026 has recognized Jenner & Block’s Washington, DC office as a hub of legal excellence, with 29 individual lawyers ranked across 16 key practice areas.

Partner Ian Gershengorn has been named The National Law Journal’s 2025 DC Attorney of the Year. The honor recognizes a Washington, DC-based attorney who has made significant contributions to the profession and in the law beyond client service within the past year.

On November 5, Associate Erica Turret represented the National Health Law Program (NHeLP) in oral argument before the DC Circuit, challenging Indiana's restrictions on Medicaid coverage.

Jenner & Block represented client Shoalwater Bay Tribe in a significant victory for Tribal sovereignty, in which the United States Supreme Court denied certiorari in RunItOneTime LLC v. United States, bringing a conclusive end to a challenge threatening tribal gaming compacts across Washington state.

Jenner & Block’s Appellate Practice has been recognized as a finalist for the National Law Journal’s 2025 Appellate Hot List. This award highlights law firms that have handled exemplary appellate matters.

Twenty-nine Jenner & Block partners have been named to Lawdragon’s 2026 “500 Leading Litigators in America” list. The award honors lawyers who have excelled in commercial litigation, product liability, mass torts, securities and other fiduciary litigation, white collar and investigations, administrative proceedings, class actions, antitrust, energy and technology disputes, intellectual property, trademark and patent wars.

Partner Ian Gershengorn has been named a finalist for The National Law Journal’s 2025 DC Attorney of the Year award. The honor recognizes Washington, DC-based attorneys who have made significant contributions to the profession and in the law beyond client service within the past year.

The National Law Journal has recognized Jenner & Block as a finalist in three categories in their 2025 awards. These awards celebrate excellence and impact across the legal profession in Washington, DC.

Chambers USA 2025 has recognized Jenner & Block’s Washington, DC office as a hub of legal excellence, with 27 individual lawyers ranked across 16 key practice areas. 

Lawyers from Jenner & Block’s Appellate and Supreme Court Practice will lead an in-person MCLE event on May 6, co-hosted with Association of Corporate Counsel (ACC) Chicago, to discuss recent developments at the US Supreme Court. Partner Ian Heath Gershengorn and his Jenner & Block colleagues will explore prominent US Supreme Court cases from the current term, fall-out from key decisions last term, and what to expect looking forward.

As part of the firm’s annual Realty Rendezvous event, Jenner & Block lawyers participated in a panel titled “What the Death of Chevron  Means for Real Estate & Hospitality,” in which they examined the overturning of the 40-year-old Chevron doctrine and the significant uncertainty it injected into the regulatory landscape.  

Join us for the return of The Realty Rendezvous! On November 19th, we will gather leaders in the real estate and hospitality industry to discuss trends and hot topics impacting our clients, including the potential impact of the 2024 election. If you are able to join in person, we hope you will stay for a networking reception following the programming.

Many skeptics of the regulatory state root their arguments in separation of powers principles: Congress is tasked with lawmaking, the judiciary is tasked with interpreting the laws, and executive agencies cannot encroach on Congress or the judiciary’s roles. In the wake of the Supreme Court’s Loper Bright and Relentless decisions last term overturning Chevron deference—wherein the Court held that the 40-year-old doctrine deferring to agencies’ interpretation of ambiguous laws contravened courts’

In a long-awaited decision in Restaurant Law Center v. US Department of Labor,[1]the US Court of Appeals for the Fifth Circuit vacated a US Department of Labor (DOL) regulation governing the way tipped employees are paid, finding the rule violated the Administrative Procedure Act (APA). The result is a major win for the restaurant industry. But it is also significant more broadly—for both the restaurant industry and every other industry facing government regulation: the case may be the first exa

15 Jenner & Block partners have been named to Lawdragon’s 2025 “500 Leading Litigators in America” list. The accolade honors the country’s top litigators and trial attorneys.  Jenner & Block’s honorees include: Jessica Ring Amunson Michael A. Doornweerd Ian Heath Gershengorn Lindsay Harrison Matthew S. Hellman Annie Kastanek Terri Mascherin Dean N. Panos Reid Schar Kate T. Spelman Howard S. Suskin Adam Unikowsky Lee Wolosky Anton R. Valukas Joanna Wright 

Jenner & Block is pleased to announce that it has once again been named to The National Law Journal’s Appellate Hot List 2024. This marks the 16th consecutive year that the firm has been honored with the recognition.

Jenner & Block has launched its Post-Chevron Task Force to support clients across industries in navigating the June 2024 US Supreme Court decisions in Loper Bright, Relentless, Corner Post, and Jarkesy. The decisions reversed the Chevron deference, a 40-year precedent that established that courts should defer to federal agencies’ interpretations of ambiguous statutes, injecting significant uncertainty into the regulatory landscape.

Partner Ian Gershengorn will reflect on his role as Acting US Solicitor General during a panel at the American Bar Associations’ 2024 Litigation Section Annual Conference. In this plenary session, Ian will join current and former solicitors general for a conversation about how the role has changed and how the office handles a new administration, with the resulting change in litigation priorities and positions.

The Third Circuit agreed with our argument that the Federal Energy Regulatory Commission cannot retroactively change the rules of an electric capacity auction after those rules have been applied. The victory represents a precedential ruling about how the filed rate doctrine applies to such auctions.