I was browsing my local Democratic party site today and noticed that they have a link to a 2004 Presidential election simulator that lets you choose candidates and scenarios to beat Bush, and then run the campaign. I downloaded the demo (it's free and a fairly small file size - about 4MB) and it's fairly realistic and, for a political junkie, fun.
If you get too stressed out on the real thing or don't want to wait until November to toss his butt out of the White House, you might want to give it a spin. Maybe we'll even stop fighting with each other (okay, that's not realistic). Here's the link:
http://www.hotpotsoftware.com/p2000/p2000.htm(With thanks to Jackson County, MO Democrats for the link)