An attorney for Sarah Palin is threatening to sue over a new book that he says defamed the Palins and contains "a series of lies and rumors." John Tiemessen, in a letter to the publisher of Crown Publishing Group Monday, cites an email that author Joe McGinniss allegedly sent a blogger in January seeking substantiation for several rumors that have surrounded Palin's family. That email was posted online last week by Andrew Breitbart. Tiemessen says McGinniss' book, "The Rogue: Searching for the Real Sarah Palin," contains "most of" the stories that merely "amounted to the wishful fantasies of disturbed individuals."