The judicial power of the United States is extended to all cases arising under the constitution. Could it be the intention of those who gave this power, to say that, in using it, the constitution should not be looked into? That a case arising under the constitution should be decided without examining the instrument under which it arises? This is too extravagant to be maintained.
In some cases then, the constitution must be looked into by the judges. And if they can open it at all, what part of it are they forbidden to read, or to obey? There are many other parts of the constitution which serve to illustrate this subject. It is declared that "no tax or duty shall be laid on articles exported from any state." Suppose a duty on the export of cotton, of tobacco, or of flour; and a suit instituted to recover it. Ought judgment to be rendered in such a case? ought the judges to close their eyes on the constitution, and only see the law. The constitution declares that "no bill of attainder or ex post facto law shall be passed."
If, however, such a bill should be passed and a person should be prosecuted under it; must the court condemn to death those victims whom the constitution endeavors to preserve?