There was no constitutional amendment protecting slavery. Utter nonsense but typical of the Neo-Rebs.
It was called the Corwin Amendment - feel free to look it up. Also feel free to actually read Lincoln’s inaugural address.
This historical ignorance is typical of PC Revisionists.
“There was no constitutional amendment protecting slavery”
Didn’t need one.
Anthony Johnson, black man, sued in Virginia court in 1655 to establish the legal precedent of slavery by holding John Casor, another black man, as a slave.
Imagine that. A black man started slavery by suing to enslave a fellow black man,
Proposed constitutional amendment protecting slavery. Lincoln supported it. He mentions it in his first inaugural address.
There was an actual constitutional clause in the body of the US Constitution that protected slavery. It was Article IV, section 2.