Established by Article I of the Constitution, the Legislative Branch consists of the House of Representatives and the Senate, which together form the United States Congress. The Constitution grants Congress the sole authority to enact legislation and declare war, the right to confirm or reject many Presidential appointments, and substantial investigative powers.
The enumerated powers are a list of items found in Article I, Section 8 of the U.S. Constitution that set forth the authoritative capacity of Congress. In summary, Congress may exercise the powers that the Constitution grants it, subject to explicit restrictions in the Bill of Rights and other protections in the Constitution. The Tenth Amendment states that "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."