After Kim Jong Un called the VP names the only possible course of action was to respond this way; Trump compliments Kim while reminding him of the subjugated nature of his military abilities. To have gone ahead with the meeting without forcing the DPRK to come back to the table would be disastrous, diplomatically, and start any negotiations off with Kim Jong Un as the superior actor.
Harvard Professor of Diplomacy & International Politics Nicholas Burns, who is also the former U.S. Ambassador to NATO, praises President Trump for cancelling the North Korea summit, saying that Trump is right to not move forward with the meeting.
Trump Was Right to Cancel the North Korea Summit: Here's Why - Fmr. Amb. Nicholas Burns: “Trump Is Right” To Cancel North Korea Summit
Harvard Professor of Diplomacy & International Politics Nicholas Burns, who is also the former U.S. Ambassador to NATO, praises President Trump for cancelling the North Korea summit, saying that Trump is right to not move forward with the meeting.
Trump Was Right to Cancel the North Korea Summit: Here's Why - Fmr. Amb. Nicholas Burns: “Trump Is Right” To Cancel North Korea Summit