My personal opinion of the recent North Korean summit with the Fat Kid is that Trump has never looked more Presidential. Walking away from the table when NK offered to close only one facility in exchange for the lifting of sanctions was the absolute right thing to do. North Korea is used to being able to extort the west with empty promises, so far and to Trump's credit they have yet to be able to do that under this Administration.
As for Trump comments on Otto Wambier, they were disappointing, to say the least. Trump often speaks off the cuff and it is often muddled, that would be the positive way of looking at it. Truth is his remarks were shameful. Nobody ever suggested the Fat Kid was in the room when they (most likely) beat that kid to death. However he is responsible, it's his country, his regime, his courts that sentenced that kid to hard labor for stealing a poster. It's on him.
However, this newfound fondness for the Otto Wambier story that our fascist brethren on the left have discovered is typically disingenuous. Wambier was imprisoned in 2016, more than one writer around the country and on Twitter any number of Obama supporters celebrated his incarceration as someone who finally got his white privilege checked. To be blunt (as I often am) you did not give a shit about that kid when he was arrested so please spare me your virtue signaling outrage about Trump's remarks. It belongs in a wastebasket along with your sudden respect for John McCain.