False. The supremacy clause means that all parts of the constitution are supreme and that includes amendment 10, which preserves the rights of the states. Therefore the exercise of a state's right is itself a protected instrumentof the supremacy clause.
Also, as I am sure you are unaware, the yankees in Congress put forth a constitutional amendment in early 1861 that would have prohibited unilateral secession. If secession was already unconstitutional, as you allege, why on earth would they need to pass a new amendment making it so? Oh, and for the record, that amendment failed miserably when they voted on it.
False.
Not according to the Supreme Court. The Court said that the president had the power under law to put down the rebellion.
Walt
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.Notice who it binds? Judges. NOT STATES. Not the people of the serveral states.