southernization

Here are the points that I take from this article...

1. Lincoln is Republican. He frees the slaves and pisses-off the south. The south votes Democratic for several decades.
2. Lyndon Johnson signs the Civil Rights Act in 1964. This ends state-sponsored segregation and pisses-off the south. The south says "Hey, maybe Republicans ain't so bad."
3. Since 1964, the south has steadily grown to be more Republican in the House and Senate.
4. Now the Republican party gets over half of it's support in national elections from the south and they are becoming a regional party, just as the Democratic party was after Lincoln.

It appears that both parties have experienced southernization in their history.