Once the war brokeout, a convention was held in Wheeling which formed a breakaway Virginia legislature which they proclaimed to be loyal to the Union. Congress recognized this legislature as the legitimate Virginia legislature. They then voted to partition the state and once Congress approved they reformed themselves as the West Virginia legislature. That is the short version of what happened.
How about DiLorenzo saying Lincoln forced Kansas into the Union? Is that DiLorenzo a cracker-jack historian or what?