After a short search on google for "Is secession legal", it looks to me that there is no real consensus - I suppose the only way to determine the legality/Constitutionality would be for some state to actually secede. I, for one, am getting impatient.
So here's a related question: Can the 49 states invoke some Constitutional mechanism to expel a state from the union?
With each passing day the nice folks living in the deep South (and, to be fair, some other places in America) get incrementally crazier and less interested in actually allowing the United States of America to be governed by our Constitutionally-mandated tripartite government.
Since we need an example, I'll suggest Texas as our candidate for expulsion. The politicians who nowadays come out of Texas are, IMHO, uniformly uninterested in governing, but are intent on preventing anyone else from governing. If Texas is the "laboratory of Democracy", we are all in deep doodoo.
Here's my suggestion.
Given that it is almost impossible to change peoples minds once they are made up, wouldn't it be far easier and simpler to send Texas away - out of the union? There would be some number of details to be worked out, but the plan seems a win-win to me. Texans would no longer be under the heel of the jack-booted thugs, and the rest of us would no longer have to listen to Ted Cruz.
What say you?