“The United States are still solely and exclusively sovereign within
the territories they have lawfully acquired and long possessed, as
they have always been.... Great Britain, by virtue of these relations,
is a stranger to parties and sections in this country, whether they
are loyal to the United States or not; and Great Britain can neither
rightfully qualify the sovereignty of the United States, nor concede
nor recognise any rights or interests or power of any party, State, or
section, in contravention to the unbroken sovereignty of the Federal
Union.”