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Jenner & Block's nationally ranked, bipartisan Congressional Investigations practice, in partnership with the Project on Government Oversight (POGO), released the 2025 edition of When Congress Comes Calling, the definitive guide for parties to congressional investigations. This is the first update to the handbook since 2017.

In a highly anticipated decision released last week, the en banc US Court of Appeals for the Federal Circuit dealt a blow to President Trump’s tariff agenda. The Federal Circuit’s ruling came down in a consolidated appeal of two cases (V.O.S. Selections and Oregon) brought in the US Court of International Trade (CIT), challenging the President’s use of the International Emergency Economic Powers Act (IEEPA) to impose tariffs via Executive Order.1 

Yesterday, the US Court of Appeals for the Federal Circuit, sitting en banc, heard nearly two hours of oral argument in V.O.S. Selections, Inc. v. Trump. Argument focused on whether the president has the authority to issue tariffs under the International Emergency Economic Powers Act (IEEPA). The Court appeared split on whether the president’s emergency declarations1authorize global reciprocal tariffs under the IEEPA and principles of constitutional law, with a majority of the judges expressing

This provides an important update to Jenner’s previous client alert which can be found here.

In a recent feature, The Lawyer profiled Jenner & Block’s Global Hearing Preparation Practice and its leading role supporting organizations involved in public hearings worldwide. The article highlights Jenner’s reputation as the go-to firm for preparing clients to appear before legislative committees, inquiries, and other public forums around the world. With a sharp rise in public scrutiny and legal risk across jurisdictions—from Washington D.C. to Westminster to Canberra—our team helps global c

Two courts this week invalidated the tariffs issued by the President under the International Emergency Economic Powers Act (IEEPA). First, late Wednesday night (May 28), the US Court of International Trade (CIT) in V.O.S. v. United States issued an order gutting seventeen executive orders that imposed tariffs under IEEPA.[1]Before the ink could dry on the order, the government appealed and requested a stay from the CIT. Before the CIT ruled on that request, the Court of Appeals for the Federal C

As governments worldwide intensify their oversight of the private sector, executives and organizations are increasingly called to appear before legislative bodies, public inquiries, and regulatory hearings. These high-profile moments require rigorous preparation and a strategic global approach to ensure consistency, clarity, and readiness across jurisdictions.

In an article for Bloomberg Law, Congressional Investigations Partners Emily Loeb and Sam Ungar and Associate Michael Brady examine changes to Senate subpoena powers, House rules, and the new House Delivering on Government Efficiency (DOGE) Subcommittee. They discuss the evolving focus on China, the House minority oversight, and more.

Jenner & Block elevated nine lawyers to the partnership and seven lawyers to special counsel, promoting 16 individuals overall in the firm’s Chicago, Los Angeles, New York, San Francisco, and Washington, DC offices.

In September, amid the divisive runup to the election, Senate Democrats and Republicans found something they could agree on: the CEO of Steward Health Care should be referred for criminal prosecution for refusing to appear at a hearing. The Senate’s unanimous vote marked the latest escalation in the legislative branch’s use of its coercive powers against private individuals. Partner Emily Loeb and Associates Sam Ungar and Michael Brady discuss why this vote may be a harbinger of even more aggres

On the campaign trail, President-elect Donald Trump vowed to bring about the “most aggressive regulatory reduction” in US history, suggesting a break from the Biden Administration’s focus on curbing corporate power. However, President-elect Trump’s choice for Attorney General, Florida Congressman Matt Gaetz, has actually expressed surprising alignment with—and support of—key Biden antitrust and regulatory officials and actions.

With the government’s annual funding package set to expire Sept. 30 and no spending compromise in sight, the federal government appears headed for an imminent shutdown.

The business community has much to watch as Congress returns from August recess. House Republicans will try to wrangle their narrow majority to pass contentious government funding legislation that will almost certainly be rejected by the Senate, while at the same time continuing to push investigations and new policies focused on China and launching a potential impeachment inquiry of President Joe Biden.

On January 6, 2023, Rep. Kevin McCarthy (R-CA) was elected Speaker of the US House of Representatives on the fifteenth ballot after a week of dramatic negotiations with the right flank of his party, finally inaugurating a new era of Republican control of the chamber. The new majority followed the speakership election by enacting a rules package which will govern how the House does business in 2023 and 2024.

On September 19, Jenner & Block filed an amicus brief before the Supreme Court of the United States in United States v. Texas on behalf of Professor Steven Vladeck of the University of Texas at Austin School of Law. The brief highlights Texas’ deliberate and unprecedented strategy of judge shopping in cases challenging the Biden Administration’s policies. It uses empirical methods to demonstrate that Texas is repeatedly filing lawsuits in judicial fora where they have a high likelihood of assign