United States. Congress, Abridgment of the Debates of Congress…
“ Recollect, sir, that it has been proved that the United States may acquire territory. Territory, so acquired, becomes from the acquisition itself a portion of the territories of the United States, or may be united with their territories without being erected into a State. A union of territory is one thing; of States, another. Both are exemplified by an actual existence. The United States possess territory, comprised in the union of territory, and not in the union of States. Congress is empowered to regulate or dispose of territorial sections of the Union, and have exercised the power ”
