Read this passage from the U. S. Constitution: 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, any Thing in
the Constitution or Laws of any State to the Contrary
notwithstanding.

What is the main idea of the passage?