I dug further, and there are a ton of articles about this, and about his "supporters," such as David Duke & Stormfront. I don't know. You can't trust everything you read on the Internet.
I was going to put a link here to Paul's speech concerning this, as words from his mouth constitute a primary source, but when I went back to check my own sources, I got the message that the video has now been removed. Here is the link anyway--someone better than I can probably hack it.
Basically, he says the North should have bought all the slaves in the South, then declared slavery illegal, and freed their purchases. This seems simplistic to me, and not very "states-rightsey." This is nothing I wish to debate here.
All I can say is that he is standing in front of the war banner of the Confederacy, not the Stars & Bars--so there ya go!