Article continues below advertisementRenowned biographer Michael Wolff shared his thoughts on Donald Trump's meeting with Vladimir Putin during a new episode of "The Daily Beast Podcast," saying the Alaska summit provided a valuable glimpse into the president's "incoherent" act."It's just what Trump needs to do," Wolff said. "He has always been essentially like this. I mean, he is always running at a level of free association or incoherence, or the scatter-shock nature of someone who just has to fill all the silences.