Nope. Even Chase admitted it. Secession is not treason nor is it rebellion. It is the right of each sovereign state.
I never said that it was. But insurrection is insurrection and that is what the southern rebels practiced. And got their asses kicked for their trouble.
I doubt that. Here is what Supreme Court justice chase said in the Texas bs White case that states secession was illegal.
The union between Texas and the other states was as complete, as perpetual, and as indissoluble as the union between the original states. There was no place for reconsideration or revocation, except through revolution or through consent of the States.
Here is what Chief Justice Chase thought about the rights of the soverign State of Texas in 1869
When, therefore, Texas became one of the United States, she entered into an indissoluble relation. All the obligations of perpetual union, and all the guaranties of republican government in the Union, attached at once to the State. The act which consummated her admission into the Union was something more than a compact; it was the incorporation of a new member into the political body. And it was final. The union between Texas and the other States was as complete, as perpetual, and as indissoluble as the union between the original States. There was no place for reconsideration or revocation, except through revolution or through consent of the States
When, therefore, Texas became one of the United States, she entered into an indissoluble relation. All the obligations of perpetual union, and all the guaranties of republican government in the Union, attached at once to the State.