U.S. Constitution, Article II — The Executive Branch, Section 2, Clause 1
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States; he may require the Opinion, in writing, of the principal Officer in each of the executive Departments, upon any Subject relating to the Duties of their respective Offices, and he shall have Power to grant Reprieves and Pardons for Offences against the United States, except in Cases of Impeachment.
Notes
Establishes the President as Commander in Chief of the Army and Navy and of the state militias when called into federal service. Allows the President to require written opinions from principal executive officers, and to grant reprieves and pardons for offenses against the United States, except in cases of impeachment.
Use as reference
Lexinter.net | U.S. Const. art. II, § 2, cl. 1 | https://laws.lexinter.net/constitution/us/article-2/section-2/clause-1