that trump and kim could have been on the verge of war earlier this year. author bob woodward reports the president was about to send a tweet that the north korean's secretly said would have been viewed as an escalation. >> he drafts a tweet saying we're going to pull out dependents from south korea, family members of the 28,000 people there. >> reporter: cnn previously reported trump ordered his national security officials to prepare to evacuate the families of u.s. military personnel in south korea. >> there's always been the concern that the defensive move might be seen by north korea as an offensive move or a prelude to our initiating an attack. any of that could have led north korea to initiate a military attack themselves. >> reporter: trump's tweet was never sent. the order to evacuate never issued. tonight some analysts worry that kim is the one calling the shots with president trump. >> he's gotten almost everything he wants from president trump. kim jong-un's messaging is not to provoke the president of the united states and also to entice