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    John Bradford Wiegmann
    Visiting Fellow
    Short Bio

    John Bradford Wiegmann is a visiting fellow at the Hoover Institution and executive director of the National Security Reform Commission. He was a career government attorney for nearly thirty years, serving in senior legal positions at the departments of Justice, Defense, and State, ODNI, and the National Security Council. His principal expertise is in national security law and policy. 

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    To view, the complete bio visit https://www.hoover.org/profiles/john-bradford-wiegmann.

About

John Bradford Wiegmann is a visiting fellow at the Hoover Institution and the executive director of the National Security Reform Commission. He was a career government attorney for nearly thirty years, serving in senior legal positions at the departments of Justice, Defense, and State, the Office of the Director of National Intelligence, and the National Security Council. His principal expertise is in national security law and policy.

Wiegmann served as a deputy assistant attorney general for national security from 2009 to 2025, leading an office responsible for providing legal and policy advice and support on diverse national security issues, including intelligence, counterterrorism, counterespionage, cybersecurity, economic sanctions, export/trade controls, the law of armed conflict, data security and privacy, national security legislation, homeland defense, and most issues in the National Security Council’s interagency process. Before that he was an assistant legal adviser at the Department of State, a deputy legal adviser at the National Security Council, and a special counsel at the Department of Defense. He also served as a senior adviser to the director of national intelligence in 2024 and was nominated to be the general counsel at ODNI. He helped lead international negotiations that resulted in the first CLOUD Act agreement (with the United Kingdom) and the EU-US Data Privacy Framework.

Before joining the government, Wiegmann worked at Shea & Gardner in Washington, DC, where he focused on civil litigation, and he served as a law clerk for Judge Patrick E. Higginbotham on the United States Court of Appeals for the Fifth Circuit. He is a graduate of Duke University and Harvard Law School.

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