... 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 ...
... No Title of
Nobility shall be
granted by the
United States: And no
Person holding any
Office of
Profit or
Trust under them, shall, without the
Consent of the
Congress,
accept of any present,
Emolument,
Office, or Title, of any kind whatever, from any
King,
Prince, or
foreign State. ...