Obama vs McCain

Well, this is the year for voting. I have heard so often already that the economy is the way it is, the stocks are down and the gas prices are awful, all because of the election year. Why is that? Why should an election year cause things to turn in such a negative way? I would like someone to explain that to me. I also wish that there was a candidate I felt strongly in backing. I guess time will tell. We'll all have to wait and see what happens I guess.