Christopher Walken is apparently running for President in 2008. Either that, or someone is pulling off an elaborate prank.
Update: It was, indeed, a hoax (thanks, Mark). And eebmore has an insightful commentarty for those who failed to be critical enough in their analysis.
Sean M. Gallagher 
The site is a hoax. I spoke to Maura Buxbaum at ID PR, Walken’s publicist. She said that Walken “has no aspirations for public office.”
http://www.rizzn.com/2005/08/walken-for-president-2008-is-confirmed.asp