Well, back than they are not called deep south republican states, back than they are deep south democrat states. Since civil war to Reagan, the south is heavily democrat. It was not until Reagan that the entire voting pattern changed forever. The so called Reagan alignment. In his alignment, the south has converted to republican, but he made the republican lost the north. Interesting huh? Do you also know blacks used to vote for republican as late as Nixon. Nixon got more blacks vote than Kennedy if I remember right.