OK, what clause? Surely you can provide that, can't you?
Yes. The tenth amendment.
Oh give me a break. The 10th Amendment allows you to steal federal property? Where do you find that?
For the umpteenth time, I've never once said that a state cannot secede. They cannot secede unilaterally, and I've quoted the parts of the Constitution that I used to reach that conclusion, Supreme Court cases that back me up, and writings from James Madison which support it.
No court decision prior to the war says a state cannot secede. And the writings of Madison are not law.
Neither are your opinions. But since nobody tried secession before the South rebelled then it stands to reason that no court could have ruled on it before the Chase court did in 1869. And the decisions I did quote support the concept of implied powers.
For the umpteenth time, show me the text of the constitution that says a state cannot secede. Why can't you? The text you cite does not say a state cannot secede and it does not imply it either. You have not cited any court cases before the war which say a state cannot secede either.
But since nobody tried secession before the South rebelled then it stands to reason that no court could have ruled on it before the Chase court did in 1869.
That was after the fact victor's justice. Chase was a Lincoln cabinet member. BTW that same Chase court also ruled in another case that it had jurisdiction over persons and property but not over political rights.
And the decisions I did quote support the concept of implied powers.
But not a requirement for Congress to approve secession. You're just making that up.