Rightwing Propaganda in Hiphop

I am so not a hiphop person, but I am absolutely curious as to the right-wing rhetoric that has overtaken some of hiphop. I am specifically thinking about that song Soulja Boy. There is another song called "I need a soldier." I wonder what ties these people have to the Bush administration. I only think of this because I hear this stuff played around me all of the time by various people.