unsuspected today it's right in line with the way he's done business for years. this tactic seems to be out of the trump play book. >> it is, wolf. while many were surprised about today's announcement, the journalists who have written books about him said this is all trump's tactic. >> no one should be anxious. we be to get it right. >> president trump walks away what could be the deal of a lifetime, terminating their planned summit citing kim's open hostilities in a reason american statement. a letter analysts say is extraordinary for its personal nature. >> it's unusual that the president would use threats of nuclear weapons in the communication with a foreign