The 2004 presidential election is barely over, and already dozens of politicians are positioning themselves as possible 2008 presidential candidates. 
 Wikipedia has a comprehensive list of possible 2008 presidential candidates at 
http://en.wikipedia.org/wiki/U.S._p..._election,_2008   Another large list of possible 2008 presidential candidates is at 
http://www.100towatch.com/  These lists include the obvious names like Hillary, Rudy, Arnold, Ralph and Jeb, but there are many other lesser-known possible 2008 presidential candidates.  
One thing is certain: It's going to be an interesting four years before the 2008 presidential election.