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Practice Area
Our nationally recognized Appellate & Critical Motions (ACM) Practice delivers sophisticated legal advocacy and analysis before trial, at trial, and on appeal. From state trial courts to the U.S. Supreme Court, our ACM attorneys identify, preserve, and present the critical legal issues that can make the difference between winning and losing.
Practice Area
Trial skills matter—even in a world where few disputes ever see the inside of a courtroom. Winston has built a reputation as a trial lawyers’ firm, featuring seasoned litigators who leverage extensive courtroom experience to meet our clients’ business and legal objectives. Our long history of taking cases to trial—and winning—provides our clients with tremendous settlement leverage with their adversaries, as well as a substantial likelihood of a favorable resolution if, and when, they go to trial.
Practice Area
Tax Controversy & Criminal Tax
Our Tax Controversy attorneys advise and represent clients in every aspect of federal and state tax investigations, as well as the criminal tax enforcement process. This includes the Internal Revenue Service’s (IRS) multi-jurisdictional examinations and administrative appeals, U.S. Competent Authority representations, post appeals mediation, and trial court and appellate litigation in every federal court hearing a tax matter.
Experience 20 results
Experience
|March 4, 2026
End of the Line: Winston Wins Unanimous Supreme Court Victory Against NJ Transit
In a unanimous decision authored by Justice Sotomayor, the U.S. Supreme Court held that NJ Transit is not an arm of the State of New Jersey and therefore is not entitled to sovereign immunity. The ruling means that plaintiffs injured by NJ Transit outside of New Jersey—such as in Pennsylvania and New York—may pursue claims in the courts of the states where their injuries occurred. The court adopted Winston’s position that state-created corporations that are formally liable for their own judgments are not arms of the state, reversing the Pennsylvania Supreme Court’s dismissal of Cedric Galette’s negligence suit while affirming the New York Court of Appeals’ decision allowing Jeffrey Colt’s case to proceed.
Experience
|June 25, 2025
Winston Secures Federal Circuit Affirmance of 101 Victory for Polycom
Winston secured an appellate victory for Polycom (now part of HP) when the Federal Circuit affirmed a judgment on the pleadings of patent-ineligibility in a lawsuit brought by directPacket Research, Inc. Working closely with HP, Winston argued that all claims of the asserted patent were directed to the abstract idea of translation via an intermediate protocol, with no inventive concept. The Northern District of California agreed, and the Federal Circuit unanimously affirmed, adopting Winston’s arguments. Eimeric Reig argued the appeal, working with HP and the Winston team, including Kathi Vidal, Kelly Hunsaker, Sam Lerner, Matt McCullough, and David Dalke.
Experience
|May 9, 2025
An Am Law LOTW Shout Out-Worthy Gold Medal Victory In $Jenner
Winston, led by partners Jeffrey Steinfeld, John Schreiber, and George Mastoris, secured full dismissal of a high-profile securities class action involving hundred of millions of dollars in $Jenner memecoin trades. Plaintiffs alleged securities fraud under federal and California laws. The team was recognized in Am Law’s Litigator of the Week column for the win.
Insights & News 1,107 results
Press Release
|April 6, 2026
|1 Min Read
Ashley Chung Rejoins Winston After Serving as Assistant U.S. Attorney and Deputy Chief of Appeals
Chicago – April 6, 2026 – Winston & Strawn LLP announced today the addition of Ashley Chung as a partner in the Chicago office. Ashley rejoins the firm’s Litigation Department as a member of its Appellate & Critical Motions practice after serving as an Assistant U.S. Attorney.
Global Trade & Foreign Policy Insights
|March 17, 2026
|8 Min Read
Cari’s Legal Exchange — Iran Sanctions: Implications for Global Trade
In this episode of Cari's Legal Exchange, Cari Stinebower, chair of Winston's International Trade Practice, is joined by Dainia Jabaji, of counsel and member of Winston’s International Trade Practice, to discuss the current state of play with respect to U.S. sanctions on Iran and the implications for global trade.
Non-Fungible Insights: Blockchain Decrypted
|March 13, 2026
|7 Min Read
The close of 2025 highlighted the continuing momentum for the digital asset industry, with regulatory developments accelerating rather than slowing.
Other Results 19 results
Site Content
For more than 170 years, Winston & Strawn has served as a trusted adviser and advocate for clients across virtually every industry. Our law practice—built on the talent, creativity, and determination of our lawyers and an unwavering commitment to our clients—has grown into a global firm of tremendous breadth. While many things have changed since the firm’s inception, our goal has remained steadfast: provide the highest echelon of service by developing strategic partnerships with our clients, creating and implementing tailored business solutions, and identifying opportunities for innovation. Complementing this service model is the priority we place on cultivating an internal culture of inclusion and opportunity, as well as our role in serving critical needs in our communities. We continue to learn from our storied history, while looking ahead to effect change in our industry.
Location
Since 1995, Winston & Strawn’s Paris office has provided a wide range of transactional and litigation legal services to its clients. Our Paris attorneys are multilingual and multicultural. Many of them have gained professional experience abroad and are well-versed in managing the cultural and legal nuances often present in legal matters involving multiple jurisdictions. They are recognized by The Legal 500 EMEA, Leaders League, Best Lawyers® in France, and Palmares du Droit.
Location
Winston & Strawn’s Brussels office further establishes our preeminent EU antitrust/competition practice at the epicenter of European competition law. The office is located on the famous Rue de la Loi or Wetstraat, which connects the Belgium Federal Parliament with the European Commission headquarters—the Berlaymont—and the Justus Lipsius, home to the Council of the European Union.