Can anyone explain Glenn Beck's agenda with regard to General Forrest? Don't need more on his religious or political beliefs that I already know. Just factual content. What's his connection to David Barton re General Forrest?

Just happened upon posts on the Tennessee message board about this and found a clip from one of his stations on this topic.
http://s661.photobucket.com/albums/uu339/Hudsonator/Glenn%20Beck%20clips/?action=view¤t=07-20-12GlennBeckEvilGenForrest_0001.mp4#!oZZ1QQcurrentZZhttp%3A%2F%2Fs661.photobucket.com%2Falbums%2Fuu339%2FHudsonator%2FGlenn%2520Beck%2520clips%2F%3Faction%3Dview%26current%3DPatStu-ForrestGBTV-com.mp4