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Index/Topics/Supremacy Clause Immunity for Federal Officers

Supremacy Clause Immunity for Federal Officers

The Supreme Court's interpretation of Supremacy Clause immunity for federal officers, including the doctrine established in Cunningham v. Neagle and its application in various contexts.

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Jan 21, 2026

What are the leading Supreme Court cases interpreting Supremacy Clause immunity for federal officers?

’s leading precedent on immunity for federal officers is the 19th‑century decision Cunningham v. (In re) Neagle, which established federal‑officer immunity from state prosecution when officers act to ...