The cancellation of the summit is the direct result of Trump's neocon bloodthirsty national security adviser John Bolton stating in April that the "Libya model" should be applied to North Korea denuclearization.
This is how the Libya model turned out for Libyan leader Muammar Gaddafi:
Just this week, the creepy Vice President Mike Pence doubled down on Bolton's Libya model comment. This triggered fiery rhetoric from North Korea which Trump then used to cancel the summit.
It should be noted that way back in March, Ron Paul Institute executive director Daniel McAdams predicted the summit wouldn't happen:
Prediction at the end of Good Friday, 2018. By June Trump will: 1) Not have had a face-to-face with Kim; 2) not have removed troops from Syria.At the time, I called them, "Bold Daniel McAdams predictions."
Now, Daniel has been proven correct on both counts. He just knows the evil neoconservatives and their Machiavellian ways too well.