Sarah Palin Threatens to Sue ‘Rogue’ Book Publisher

The book was widely panned by critics for using unnamed sources to criticize Palin and her family. Tiemessen cites an email they have access to in which McGinniss writes that attorneys from Crown Publishing told him “nothing I can cite other than my own reporting rises above the level of tawdry gossip. The proof is always just around the corner, but that is a corner nobody has been able to turn” and that McGinniss “ran out of time” to sufficiently source the book.

A source close to the Palins tells ABC News that the “Palins are fighting back and demanding answers from Random House.”

“Random House is at the top of the food chain and published a book based upon acknowledged unsubstantiated gossip,” the source said. “The revealing email is key as evidence of this defamatory approach to politics through proxies.”

Tiemessen writes in the letter that the email “clearly describes the fact that Mr. McGinniss researched and investigated many false and scurrilous allegations, and concluded that there was absolutely no evidence anywhere backing these allegations.”