Client Alert: Not Just About Tax Returns: The Supreme Court Clarifies Congressional Subpoena Power—and Its Limitations

On October 8, Washington, DC Office Managing Partner Lindsay Harrison will moderate a panel at the International Bar Association (IBA) Annual Conference in Copenhagen.

On October 1, Associate Sarah Sun Lee will moderate a panel on attorney-client privilege at the International Association of Korean Lawyers' (IAKL) 33rd Annual Conference in London, the organization's first annual conference held in Europe.

Jenner & Block was named the Law Firm Honoree at Pro Bono Partnership's 29th Anniversary Gala on September 30 in New York City. The award recognizes a firm for its outstanding service to the community and its deeply rooted commitment to pro bono work. Pro Bono Partnership is a nonprofit organization that provides free business and transactional legal help to other nonprofits serving underrepresented people and strengthening neighborhoods across Connecticut, New Jersey, and New York.

On October 1, Special Counsel Will Jones will speak at a joint hybrid seminar hosted by the Administrative Law Bar Association (ALBA) and the Public Law Solicitors Association (PULSA), titled "Consultation and Legitimate Expectation: Where Are We Now?"

Los Angeles Partner Julie Shepard has been named to the Daily Journal's 2026 list of the Top 100 Lawyers in California. The award features the most exceptional attorneys who have demonstrated outstanding leadership and impact through their work across the state.

In July 2026, in Signant Health Hold Corp. v. Definium Therapeutics, Inc., No. 26-114-GBW (D. Del.), Judge Gregory Williams dismissed a complaint bringing claims of trade secret misappropriation under the Defense of Trade Secrets Act (DTSA) and state law claims of breach of contract and violation of the Delaware Uniform Trade Secrets Act, finding that the plaintiff failed to properly identify a trade secret under DTSA and declining to exercise supplemental jurisdiction over the state law claims.

On June 15, 2026, the Delaware Court of Chancery issued its decision in Ayers v. Foley (C.A. No. 2025-0650-LWW), the first opinion interpreting Section 144(d)(2) of the Delaware General Corporation Law (DGCL), as amended by Senate Bill 21 (SB 21). The Court held that this provision’s heightened presumption of director disinterestedness is not limited to Section 144's safe harbors for conflicted transactions – it also applies when a court decides whether a stockholder plaintiff can skip demanding

Welcome to the September 2026 edition of the Jenner & Block Japan Newsletter, a publication containing updates about legal developments in the United States that may be noteworthy to our clients and other leaders in the Japanese legal and business communities.

Recent English case law has created two tracks for enforcement of investor/state awards, depending on whether the award arises under the ICSID Convention or the New York Convention.

In May 2025, following the America First Investment Policy’s call for the creation of an expedited process to facilitate US ally and partner investment in the United States, the Treasury Department announced a plan to create a “Known Investor Program.” Through this program, the Committee on Foreign Investment in the United States (CFIUS) would collect information from foreign investors who opt into the program prior to submission of a formal CFIUS filing. The goal is to allow CFIUS to more effic

Jenner & Block partnered with the National Immigrant Justice Center (NIJC) for an all-day affidavit clinic supporting six unaccompanied children, each from a different country, as they prepared for upcoming asylum interviews.

NEW YORK, NY, September 28, 2026 – Jenner & Block is pleased to announce that Jeremy Feigenbaum, New Jersey’s inaugural Solicitor General, has joined the firm as a partner in its New York office. Jeremy, who has served in senior state leadership roles for nearly a decade, will support clients across industries as they navigate high-stakes appeals and Supreme Court litigation, federal and multistate investigations, complex commercial disputes, and litigation at the intersection of government and

Partner Rachel Alpert was quoted in a Global Investigations Review (GIR) article examining the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 and the broad waiver power it grants the president over the new sanctions authorities.

Of Counsel Matt Pearl to Speak at Federal Communications Bar Association CLE on Federal Spectrum Reallocation

Federal consumer protection and antitrust enforcement and oversight have changed meaningfully since 2025. The Consumer Financial Protection Bureau (CFPB) has been substantially defunded and has withdrawn from much of its enforcement docket, and the Federal Trade Commission (FTC) reduced its staff and budget for 2026, while redirecting its remaining capacity toward the Trump administration’s priorities. While consumer protection and antitrust have historically been areas of concurrent state juris

On September 22, Jenner & Block welcomed the Zero Emission Transportation Association (ZETA) to its New York office for a Climate Week NYC 2026 program, bringing together industry leaders, policymakers, and counsel working across the electric vehicle and clean transportation sector.