In President Trump’s newly published “Save America,” a coffee-table picture book, he writes that the first of his three meetings with Kim Jong-un had shown that “real change is indeed possible” and that they had gotten “to know each other well in a confined period of time.”

It was at the summit between Trump and Kim at Singapore in June 2018 that they struck up a relationship that showed “real change is possible,” he wrote, raising hopes for “a glorious new era of security and prosperity for his people” after decades of hostility dating to the Korean War.