The latest tell-all book on Hillary Clinton’s failed campaign, “Shattered: Inside Hillary Clinton’s Doomed Campaign,” hit bookstore shelves this week. The book, written by lefty reporters Jonathan Allen and Amie Parnes, reveals the inner workings of what may be best described as a dysfunctional and disjointed campaign. Allen and Parnes, who penned a far more flattering book, “HRC,” in 2014, expose a number of early missteps that were never truly addressed and therefore doomed Clinton’s election hopes — or so the story goes. One wonders how Allen and Parnes would have described the Clinton campaign had she managed to attract a few more votes in Pennsylvania, Michigan and Wisconsin… But we digress.

The book is filled with juicy tales of infighting among leading staff and advisers, an amazing lack of clear communication, and the mind-boggling failure to build a comprehensive and cohesive campaign message. Why was Hillary running, other than because she thought it was her turn to be president? Moreover, like Mitt Romney in 2012, she assumed she had the race won, and thus didn’t do the work to actually win it.

What may be the book’s most valuable insight is its exposure of just how awful and petulant a leader Hillary is. In early 2016, for example, she became severely frustrated with her campaign manager, Robby Mook, over his continued second-guessing of her decisions. Instead of firing him or working to come to a clearer understanding of the role he played, she simply stopped speaking to him. And so, from the end of February 2016 to the election, Hillary never spoke directly to her campaign manager. That’s astounding.

While interesting insights and new revelations may be gleaned from the book, it still doesn’t change the fact that the Democrat Party nominated a miserable and deeply flawed candidate, and that Hillary lost because of Hillary. And America is better off because of it.