Question: Were United States v. Nixon and Zelman v. Simmons-Harris both US Supreme Court cases?
Sentence (from "United States v. Nixon"): United States v. Nixon, 418 U.S. 683 (1974), was a landmark United States Supreme Court decision which resulted in a unanimous 8–0 ruling against President Richard Nixon, ordering him to deliver presidential tape recordings and other subpoenaed materials to the District Court.
Relevant evidence: Yes