A 3-Way, Bordering on a 4-Way Race in Iowa; Another Big Day for Kerry; Dean's Lead Widens to 5 Points Over Gephardt, According to New Reuters/MSNBC/Zogby Poll Former Vermont Governor Dr. Howard Dean has expanded his lead over Missouri Congressman Richard Gephardt in Iowa caucus polling, 28%-23%, according to the new Reuters/MSNBC/Zogby Poll. Massachusetts Senator John Kerry holds third place with a one-point increase to 17%, followed by North Carolina Senator John Edwards who bounced back to 14%. Dean has opened an 11-point lead over Gephardt in western Iowa, 4 points in the east, and 3 in the central part....