What does article five of the constitution state?
"All debts contracted and engagements entered into, before the
adoption of this Constitution, shall be as valid against the United
States under this Constitution, as under the Confederation.
This Constitution, and the laws of the United States which shall
be made in pursuance thereof; and all treaties made, or which shall
be made, under the authority of the United States, shall be the
supreme law of the land; and the judges in every state shall be
bound thereby, anything in the Constitution or laws of any State to
the contrary notwithstanding.
The Senators and Representatives before mentioned, and the
members of the several state legislatures, and all executive and
judicial officers, both of the United States and of the several
states, shall be bound by oath or affirmation, to support this
Constitution; but no religious test shall ever be required as a
qualification to any office or public trust under the United
States."
http://www.law.cornell.edu/constitution/articlevi