"The treatymaking power is an extraordinary power, liable to abuse. Treaties make international law and also they make domestic law. Under our Constitution, treaties become the supreme law of the land. They are, indeed, more supreme than ordinary laws for congressional laws are invalid if they do not conform to the Constitution, whereas treaty law can override the Constitution. Treaties, for example, can take powers away from the Congress and give them to the President; they can take powers from the States and give them to the Federal Government or to some international body, and they can cut across the rights given the people by their constitutional Bill of Rights.”
--John Foster Dulles in his Louisville, Kentucky speech of April 12, 1952.

Those too young to remember when Dulles was not just an airport may also be too young to remember Carol Burnett:

https://www.youtube.com/watch?v=IgTN13_bfXQ