I’ve mulled over the headline, and obviously, “most honest” is total nonsense. Who is more honest than who has to either be a qualitative measure of character or a quantitative measure of how often you lie, and on both Trump is the least honest.
What the article means is that Trump is the most weird president in history. We sit and wonder: You lie nearly 100% of the time, why the hell are you telling the truth on national television about firing Comey because of “the Russia thing.”
That someone who lies so consistently about things that don’t matter in the slightest, it’s super weird that he would choose not to lie on many occasions when it seems like lying would have been by far the better thing for him to do. We associate admissions against the interests of the speaker with honesty. But Trump isn’t doing that because it is important to him to tell the truth. He’s doing it as a way of sorting people who are zealously faithful to him from people who are willing to question him. That’s not opposed to honesty the way that lying is, it’s anathema to honesty.
If honestly were to look back and catch a glimpse of Trump as it was fleeing from him, it would surely spend the rest of it’s life in an institution, gibbering insanely.