Excavating previously unknown details about a major media event is no easy task — but Edward-Isaac Dovere pulls it off admirably in his new book, “Battle For The Soul: Inside The Democrats’ Campaigns To Defeat Trump.” The book is packed with juicy background about weird personal proclivities (Bernie Sanders likes his hotel rooms ***cold***) and awkward dynamics between candidates. And it pulls the curtain back on bigger, more important topics — like the internecine feud between Democratic progressives and moderates, and the party’s abiding uncertainty about how to respond to Trump and Trumpism. Listen to Dovere talk it through with Peter Kadzis and Adam Reilly, and then go grab a copy of the book.