Tags: Case, Legal Case, Supreme Court Of The United States Case, Unit Of Work.
Pennsylvania v. Nelson 350 U.S. 497 (1956) was a United States Supreme Court case that established a precedent for the preemption of United States Federal law over State laws. The case was argued November 15–16 1955 and the decision was handed down April 2 1956. The State of Pennsylvania tried to convict a man of sedition under a state law but a Federal law existed on the same subject.