Nicolle Wallace, former Communications Director for President Bush and -- Is there any way to put this delicately? -- Sarah Palin's chaperone during the 2008 campaign, has written "It's Classified," a novel whose characters include "Charlotte," as President, and "Tara," as Vice President.
The book's prologue can be read here, at Simon & Schuster's website. The Daily Beast has an excerpt from Chapter Twenty-four, where "Tara" -- is she Sarah? -- has difficulty with an interview. Or, look inside the book, at Amazon. And, last but not least, Nicolle Wallace (and Steve Schmidt) were interviewed by Rachel Maddow. On Maddow's show, Wallace says that "Tara" was inspired by Sarah Palin. Nicolle Wallace begins talking about 2:18:
Gryphen has "Just in case there are NOT enough nails in Sarah Palin's political coffin, let me present the devastating Rachel Maddow interview with ex-McCain staffers Steve Schmidt and Nicolle Wallace." It has video of Rachel Maddow's entire show and gives times for the best parts -- there are more than this short clip shows -- so you can skip ahead and easily find them.
P.S. I've figured out when Sarah Palin may announce her candidacy. She may try to scare us with an announcement on Halloween, October 31st. Hey! Everyone else has been sure when she'd announce and been wrong. Besides, it would be an "October Surprise." CBS has "How late can a Chris Christie or a Sarah Palin wait before it is too late?" Their story indicates that October 31st is the last day to enter the Florida primary.
Update: Corrected the Amazon link, above. It was a link to Nicolle Wallace's "Eighteen Acres," an earlier book.
Update: Rachel Maddow comments on Nicolle Wallace's statement at her Maddow Blog, in "The left, the right, Sarah Palin and 'cuckoo for Cocoa Puffs'."