Article 2, Section 1 of the Constitution
Yes, every state is a sovereign state
The original intent of the Constitution was to form a working document upon which the laws of the United States were based and the rights of its citizens were to be respected and protected.
No
The courts are in charge of upholding the Supremacy Clause of the United States Constitution. This includes the Supreme Court and the State courts.
The Manga Carta
A
The constitution is the supreme law of the land.