Huh? . . . "enumerated rights" expanding beyond "retained rights"?
The express enumeration of powers limits them, as SCOTUS said:
"That the people have an original right to establish, for their future government, such principles as, in their opinion, shall most conduce to their own happiness, is the basis on which the whole American fabric has been erected. The exercise of this original right is a very great exertion; nor can it nor ought it to be frequently repeated.
The principles, therefore, so established are deemed fundamental. And as the authority, from which they proceed, is supreme, and can seldom act, they are designed to be permanent.
This original and supreme will organizes the government, and assigns to different departments their respective powers. It may either stop here; or establish certain limits not to be transcended by those departments.
The government of the United States is of the latter description. The powers of the legislature are defined and limited; and that those limits may not be mistaken or forgotten, the constitution is written. To what purpose are powers limited, and to what purpose is that limitation committed to writing; if these limits may, at any time, be passed by those intended to be restrained? The distinction between a government with limited and unlimited powers is abolished, if those limits do not confine the persons on whom they are imposed, and if acts prohibited and acts allowed are of equal obligation."
MARBURY v. MADISON, 5 U.S. 137 (1803)