Timothy Bishop

Timothy Brown is a partner at Mayer Brown. An experienced appellate lawyer, Mr. Bishop has argued seven cases and briefed more than 80 before the US Supreme Court, with an eighth argument scheduled for October 2022, and has successfully handled dozens of appeals in federal and state appellate courts. He also represents clients in dispositive dismissal, summary judgment, and class certification motions in federal and state trial courts. Tim is co-author of the standard treatise on litigation before the U.S. Supreme Court, Supreme Court Practice (11th ed. 2019), a contributor to Federal Appellate Practice (3d ed. 2018), and a prolific author and speaker in the areas of appellate practice, environmental law, and securities law.

Tim successfully argued Solid Waste Agency of Northern Cook County in the Supreme Court, in which the Court struck down the Corps of Engineer's "migratory bird rule." More recently, in National Ass'n of Manufacturers v. Dep't of Defense, he scored a unanimous victory that solves a jurisdictional debate that has hindered Clean-Water-Act litigants for decades. In Weyerhaueser v. U.S. Fish & Wildlife Service he obtained a unanimous ruling that struck down an overbroad interpretation of “critical habitat” under the Endangered Species Act. In 2022, the Supreme Court agreed to hear his clients’ Commerce Clause challenge to a California law prohibiting sales of pork that does not comply with California’s sow-housing requirements. One leading environmental law professor and practitioner has written that Tim is "industry's leading Supreme Court lawyer in environmental cases."

Since 1995, Tim has been a partner in Mayer Brown's 60-strong Supreme Court & Appellate Litigation practice and is a member of the Firm's environmental practice group, which was named an "Environmental Practice Group of the Year" by Law360 two years in a row (2018 & 2019). Previously, he served as Law Clerk to US Supreme Court Justice William J. Brennan, Jr., and to Judge James L. Oakes, US Court of Appeals for the Second Circuit, and was Staff Counsel and Skadden Fellow with the American Civil Liberties Union. Tim has been consistently named one of Benchmark's  Appellate Illinois Litigation Stars and a Leading Lawyers Top Ten Environmental Lawyer. Other recent accolades include selection as a 2018 Law360 environmental MVP, a 2018 Financial Times commendation for Legal innovation, and 2015 National Law Journal Environmental Trailblazer.