https://www.npr.org/2019/06/02/729131609/michael-wolff-defends-his-reporting-of-new-trump-tell-all
In the Morning Edition interview, Wolff says those who have spent the most time with President Trump describe him as “vile and ludicrous.” Wolff says over the course of writing two books he has come to believe Trump is governing on impulse and whim, that there is no method to the madness and that someone who is “functionally a madman” is president of the United States.