North Korea and South Korea held talks on Tuesday after a prolonged period of tension on the Korean peninsula over the North's missile and nuclear programmes.
In fact, sources tell NBC News that Trump made a career USA intelligence officer uncomfortable previous year when he grilled her on her Korean heritage and demanded to know why she wasn't being used to negotiate with North Korean leader Kim Jong Un.
North Korea's delegates meanwhile said in a keynote speech following the discussions that they hoped "to solve all inter-Korean issues through dialogue". As a result of the dialogue, North Korea is heading to next month's Winter Olympics in Pyeongchang. "I just don't want to comment".
Democratic Representative Ted Lieu of California recently told Newsweek Trump's tweet was "highly stupid" and increased "the chances of North Korea making a fatal miscalculation and using nuclear weapons first".
Trump engaged in a heated war of words with Kim over the course of 2017, threatening his country with "fire and fury" and giving him the nickname "Rocket Man". Kim, in turn, has called Trump a "dotard" an insult for a senile older person. "I'm not saying I have or haven't", he said in an interview with The Wall Street Journal published Thursday.
In the Journal interview, Trump suggested his combative tweets are part of a broader strategy.
President Xi noted any improvement in the South-North Korea relationship must move forward simultaneously with progress in denuclearization of the Korean Peninsula, according to Yoon.
Asked whether he has spoken with the North Korean leader, Trump told the newspaper: "I don't want to comment on it".
"The two leaders agreed to strengthen strategic communication and cooperation", the statement said.