U.S. Constitution, Article I, Section 8, Clause 18
“The Congress shall have power …To make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this Constitution in the government of the United States, or in any department or officer thereof.” It is often called the “necessary and proper clause” or the “basket clause”.
Our Founders' Warning: “Every government degenerates when trusted to the rulers of the people alone. The people themselves are its only safe depositories.” (Thomas Jefferson)