I wonder if this is tomorrow's Zogby tracking poll? If so, this race could be a statistical tie.
http://www.whotv.com/Global/story.asp?S=1601723
Des Moines, January 15, 2003 - We've just gotten some new numbers in from a Zogby Poll. It shows that John Kerry is now in the lead at 22 percent. Howard Dean and Dick Gephardt are tied at second place with 21 percent. And John Edwards is coming in at 17 percent. So if the poll holds, it would show that times are changing for the campaign. The Margin of error is +/- 4.5%
I think that the small sample size (164) and the margin of error renders this poll moot. I'd trust the internal poll out of the Dean HQ better than this.