States discussed secession as early as 1803. One of the reasons Hamilton was killed was because he made sure Burr was defeated as Gov. of NY. Burr was playing footise with the NE secessionists and Hamilton abhorred the idea of destroying the Union. H was actually offered command of the military of the proposed new nation but made sure it never was created.
Of course, we know the opinion that Jackson had about secessionists as he threatened to personally hang anyone attempting it from S. Carolina’s highest tree.
My point was about “a constittutional right to secession” not some people who wanted to secede just because they wanted to do it.