Marco Rubio has rushed publication on his memoir, paid investigators over $40,000 to find potential skeletons in his closet, and requested that the Florida Commission on Ethics discard a charge he used campaign money "to subsidize his lifestyle." Is he preparing for a VP run? "Marco's saying all the right things because nobody who wants to be vice president should admit it. But he's bound to be on the nominee's shortlist and he's smart to prepare for it now," said a Republican fundraiser and friend of the senator's. "If he does get asked, it will be very hard to say no."