[BroJoeK]

" Post some historical documentation that meets your own SPECIFIC requirement, that the phrases "unilateral secession" or "unapproved withdrawal from the Union" be included."

You lost this "debate" long ago. Now you're not even firing "blanks," now you're trying to re-fire spent cartridges of blanks, and yelling "Yeeeeeeee Haaaaaaaw!" all the louder.

""Article I, section 10, clause 1 of the Constitution provides that “No State shall … pass any Law impairing the Obligation of Contracts.” " "

Would not even "John Galt" agree that "unilateral secession" and "unapproved withdrawal from the Union" equate to "imparing the Obligation of Contract" -- of the US Constitution?

[Who is John Galt?]

BJ (Post #2233): Sorry pal, but all you're doing here is "firing blanks" or worse, misfiring "spent cartridges," because NONE of these quotes refer to a right of "unilateral secession," or "unapproved withdrawal from the Union."
Furthermore, any quotes from the period AFTER ratification in 1788 are likely just then-current political statements, and not necessarily the Founders' "original intent."

Post something that complies with your own requirements - hypocrite...

;>)