President Trump has reaffirmed his close ties with the North Korean leader... a day after he walked away from a deal.<br /> He took to Twitter on Friday to say he had "very substantive negotiations with Kim Jong-un," adding they well understood each other's demands.<br />Trump stressed their relationship is very good and expressed hope going forward.<br /> During an interview with Fox News the previous day, President Trump said he wanted total denuclearization,... while Kim was only willing to give up specific areas.<br />He also admitted both he and Kim were not prepared enough to come up with a satisfactory deal in Hanoi. <br />