Corwin changed nothing, but it held Border States in the Union long enough to defeat Confederates and abolish slavery via the 13th Amendment.
That makes Corwin an important piece of anti-slavery legislation!
Was it you that argued Justice Taney's brilliant opinion in the Dred Scott case was an important antislavery judicial ruling?
Or am I thinking of something else?
I disagree. It revealed that Republican politics was just a smoke screen for the masses. What they really believed in was the continuation of that money from the South.
Abolition of Slavery? Not so much.