Brett J.Wierenga


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Brett Wierenga focuses his practice on appellate advocacy and motions practice for clients in complex civil litigation, on matters of constitutional law, bankruptcy, and contracts.

Brett has drafted or assisted with briefs in state and federal trial and appeals courts at most stages of litigation, including preliminary injunctive relief, dispositive motions, pretrial motions, and appeals. Brett maintains an active pro bono practice, including immigration, habeas, and child custody matters, and he has stand-up experience advocating for pro bono clients at trial.

Before joining Jones Day, Brett served as a judicial law clerk on the U.S. Courts of Appeals for the Sixth and Ninth Circuits.


  • Sanofi defeats class certification in putative nationwide consumer class actionThe United States District Court for the District of New Jersey recently denied a motion for class certification brought by plaintiffs seeking to represent all consumers nationwide who purchased insulin products sold by Jones Day’s client Sanofi-Aventis U.S. LLC.
  • Directors of D.C. religious nonprofit win complete dismissal of claims alleging fiduciary violations and breach of contractJones Day secured dismissal of a longstanding suit against a D.C. religious nonprofit and its directors. In August 2022, the D.C. Court of Appeals reversed a $530 million judgment against the directors, vindicating their rights under the First Amendment.
  • Governor's campaign manager persuades Supreme Court to overturn fraud convictionThe Supreme Court ruled unanimously in favor of Jones Day's client, Joseph Percoco, a former top aide and campaign manager for New York Governor Andrew Cuomo, in a challenge to his conviction for honest-services fraud arising from conduct when he was a private citizen serving as campaign manager.
  • LTL Management, a Johnson & Johnson affiliate, files for chapter 11 to equitably and permanently resolve all current and future talc-related claims against itJones Day represents LTL Management LLC in its chapter 11 bankruptcy case filed October 14, 2021 in the Western District of North Carolina.