Barack Obama isn't even halfway through his first term, and politicos across the country have already started talking about the Republicans who will try to replace him in 2012. Consequently, I've compiled an analysis of where the GOP primary race stands, and how it will change over the next two years. Of course, there are several unresolved variables which could profoundly impact the 2012 election, and this post will attempt to identify and examine as many as possible.