I Always Feel Like Somebody's Watching Me

So I was checking out my SiteMeter, because I'm just so concerned over how many visitors I get </sarcasm>, and I notice something odd about a recent visitor. I figure it's nothing, and I'm being ridiculous, until I see their details:
Look closely at that IP block. That resolves to the National Republican Congressional Committee. Seems that someone's keeping tabs on me.

I can't imagine why. I'm not important. I don't get many visitors. I'm a minnow in a pond full of lunkers. Why would anyone care enough to keep track of me? Wouldn't that time and effort be better served on things and people that matter? Wouldn't keeping track of the high-profile people be more productive?