# Perpich v. Department of Defense *1990 United States Supreme Court decision on a governor's authority over National Guard deployment* **Perpich v. Department of Defense** is a 1990 decision of the Supreme Court of the United States on whether a state governor may block a National Guard deployment. The Court ruled 9–0 that a governor cannot block such a deployment.[^1] The decision was issued in Washington, D.C., on June 11, 1990, under the caption bearing the name of Rudy Perpich.[^1] ## In the Minnesota record ### Who - Rudy Perpich is the person named with the decision in the record's dated entry and in the case caption.[^1] ### What - The Court ruled 9–0 that a governor cannot block a National Guard deployment.[^1] ### When - The Court decided *Perpich v. Department of Defense* on June 11, 1990.[^1] ### Where - The decision was issued in Washington, D.C.[^1] ## Notes [^1]: Supreme Court of the United States, *Perpich v. Department of Defense*, 496 U.S. 334 (June 11, 1990) — decision holding 9–0 that a governor cannot block a National Guard deployment. https://supreme.justia.com/cases/federal/us/496/334/