[HuntsvilleTxVeteran]

The “Supremacy Clause” of the U.S. Constitution
is contained in Article VI:

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.

[AndrewC]

Are you saying that the President of the U.S. along with the Consent of the Senate, can dissolve the states by making a treaty with a nation who doesn’t like our form of government? Or can impose a form of government which is not a republic? Because that is what you are implying. A treaty is a law. A law can be repealed by the legislature and the President by using another law. Only the states can modify the provisions of the Constitution. And it takes a lot of them.(In reality, 5 idiot members of the Supreme Court can overturn the Constitution, because we let them.)

[brityank]

The "Authority of the United States" is dependent on the valid Constitution; therefor all laws and treaties must be subservient thereto.

The Constitution is the highest Authority, and all laws and treaties must abide by its restrictions, else they are unlawful.