Actually it says that powers not delegated to the United States or prohibited to the states are reserved to the states. The power to admit states and approved changes in their status is a power reserved to the United States.
So, by default, secession is perfectly legal and enjoys constitutional sanction until otherwise specified by some potential future amendment.
Not so much, no. Not without the consent of a majority of the states.
You know, I'm pretty sure that the central government was never delegated to power to secede from the US. So, no, the constitution doesn't transfer powers of self-determination to the FedGov.
Not so much, no. Not without the consent of a majority of the states.
I'm such a generous fellow, I'll provide space below in which you can provide a citation of the constitution to back up that claim: