Please see #306 above. A state cannot be expelled.
I read #306. I've even read the Constitution. In the first place Article V deals with amendments to the Constitution. We're not talking about amending the document here, and reducing the number of senate seats a state has. We're talking about booting a state out entirely, without it's consent. And there is nothing I;m aware of in the Constitution that prevents that, and you've shown nothing that prevents it, either. Regardless, Article V says that no state may be deprived of it's two senators without it's consent. Well, if the other states expel Rhode Island, for example, the Rhode Island isn't a state any more and isn't entitled to any representation at all. You claim that states can withdraw at will, for any reason or for no reason at all, and they are no longer bound by the restrictions of the Constitution. Well, if the other states boot Rhode Island then it is entitled to none of the Constitution's protections. That has to be possible, given your beliefs on the sovereignty of the states and their power to alter the agreement with other states at will. Doesn't it?