citizen of a right to which that Act entitles him. Should this H.C. or A.
collision exist, it will be immaterial whether those laws were Rass
passed in virtue of a concurrent power 'to regulate commerce Peverared
with foreign nations and among the several States,' or in virtue }4¥ Miu &e.
of a power to regulate their domestic trade and police. In one 4 ASIA
ease and the other the Acts of" (the State) "must yield to the Jamxs Moone
Jaw of Congress ; and the decision sustaining the privilege they Panay
confer, against a right given by a law union, must be erroneous. - _"-
"This opinion has been frequently expressed in this Court, and _tsases J.
is founded, as well on the nature of the government as on the
words of the Constitution. In argument, however, it has been
contended, that if the law passed by a State, in the exercise of its
acknowledged sovereignty, comes into conflict with a law passed
by Congress in pursuance of the Constitution, they affect the sub-
ject, and each other, like equal opposing powers.
"But the framers of our Constitution foresaw this state of
things, and provided for it, by declaring the supremacy not only
of itself, but of the laws made in pursuance of it. The nallity of
any Act, inconsistent with the Constitution, is produced by the
declaration, that the Constitution is the supreme law. The ap-
propriate application of that part of the clause which confers the
same supremacy on laws and treaties, is to such Acts of the State
legislatures as do not transcend their powers, but, though enacted
in the execution of acknowledged State powers, interfere with, or
are contrary to the laws of Congress, made in pursuance of the
Constitution, or some treaty made under the authority of the
United States. In every such case, the Act of Congress, or the
treaty, is supreme; and the law of the State, though enacted in
the exercise of powers not controverted, must yield to it."
This view has been sustained in various cases, among which
may be mentioned Western Union Telegraph Co. v. Pendleton
(1), where Field J. stated the same principle in equally distinct
language ; Asbell v. Kansas (2).
But there is for us even more authoritative opinion than that I
have just quoted ; and there are instances that appear to me to
be almost on all fours with the present case. Under the Canadian
Constitution, sec. 92, sub-sec. 13, the Provinces have exclusive