Little v. Barreme
Little v. Barreme, 6 U.S. (2 Cranch) 170 (1804), was a United States Supreme Court case in which the Court found that the President of the United States does not have "inherent authority" or "inherent powers", either as commander in chief or under the Faithful Execution Clause, to modify a procedure that Congress has provided, even if the executive action was compatible with the legislative intent.