“I, too, served in the military, and I come from a military family. I know that we took an oath to uphold the constitution, but who decides what is constitutional and what is unconstitutional? If the Supreme Court ruled that something was unconstitutional and the POTUS tried to enforce something that was blatantly unconstitutional, that would be an clear cut decision. But what if the Supreme Court decided that something that in the view of most citizens was unconstitutional as constitutional? Would that make it constitutional? Even if something is ruled constitutional, that does not make it right. To take an oath to uphold and defend the Constitution of the United States is not as easy as it sounds. The Nazis took an oath to their Constitution, too, and they were still condemned as war criminals.”
The United States Supreme court does not have the final word on what is and what is not Constitutional. If it did then there would be no Constitution, only a Supreme court.
The authority instead rest with we the people, and as our tools our States.