The Democratic party began its career as a States-rights party.
"American Eloquence, Volume I. (of 4) Studies In American Political History (1896)" by Various
Jefferson Davis had always been a States' Rights Democrat, and had been defeated for Governor of Mississippi by the Constitutional Union party.
"Robert Toombs" by Pleasant A. Stovall
On the other side was a democratic party, championing State rights.
"George Brown" by John Lewis
The Democratic party then said the Federal Government had a right to cross the State line.
"The Works of Robert G. Ingersoll, Vol. 9 (of 12) Dresden Edition--Political" by Robert G. Ingersoll