I was glad that Senator Mike Lee brought this up tonight. I couldn't remember the name of the Clause. The Federal government owns 2/3 of the land in the state of Utah.
Enclave Clause - Article 1 Section 8, Clause 17 of the Constitution
The United States Constitution
The Enclave Clause is one of Congress’ enumerated powers found in the Constitution of the United States, Article. I. Section. 8., clause 17:
(Clause 17 – Enclave clause)
[The Congress shall have Power] To exercise exclusive Legislation in all Cases whatsoever, over such District
(not exceeding ten Miles square) as may, by Cession of particular States, and the Acceptance of Congress, become the Seat of the Government of the United States, and to exercise like Authority over all Places purchased by the Consent of the Legislature of the State in which the Same shall be, for the Erection of Forts, Magazines, Arsenals, dock-Yards, and other needful Buildings;–And This clause enables Congress to govern the District of Columbia. Congress has now delegated that power to a locally elected government, subject to federal oversight. Congress also governs forts, arsenals, and other places obtained from the states for the federal government’s purposes.