http://www.slate.com/blogs/blogs/trailhead/archive/2008/02/05/don-t-trust-california-s-exit-polls.aspxCORRECTION Feb. 6, 1:05 p.m.: Well, I was wrong. Contrary to my original post, California's exit poll data did include a sample of early voters polled via the phone. From Associated Press' account of the methodology : There were 17,454 interviews of DemocraticenCommunityServer 2.1 SP2 (Build: 61129.2)