This litigation presents for review the denial of a motion, filed in the District Court on behalf of the President of the United States, in the case of United States v. Mitchell (D.C. Crim. No. 74-110), to quash a third-party subpoena duces tecum issued by the United States District Court for the District of Columbia, pursuant to Fed. Rule Crim. Proc. 17 (c). The subpoena directed the President to produce certain tape recordings and documents relating to his conversations with aides and advisers. The court rejected the Presidents claims of absolute executive privilege, of lack of jurisdiction, and of failure to satisfy the requirements of Rule 17 (c). The President appealed to the Court of Appeals. We granted both the United States petition for certiorari before judgment (No. 73-1766), and also the Presidents cross-petition for certiorari
