Good point. But Trump has expressed interest in meeting Kim face-to-face. The meeting itself would be the message, that both ides are willing to talk. Any substantive discussion would be carried out by Rex Tillerson and his North Korean counterpart. Of course, Kim would look for any kind of gaff made by Trump, and I imagine Kim would find something. Trump isn't the best president for the job, but unfortunately, he's the only president we have. Something like rapprochement leading to dialog with North Korea would be a real score for Trump, just as the China meeting was for Nixon.