Besieged author Ed Klein is preparing to defend his work this week when he hits the promotional circuit for TRUTH ABOUT HILLARY. Klein publisher as upped the book's launch to nearly 350,000 copies, sources tell the DRUDGE REPORT. [The book ranked #26 on AMAZON.COM's hourly sale chart late Sunday.] Klein will sensationally claim Bill Clinton is flagrantly cheating on his senator wife. "Hillary's aides noticed that Bill seemed to grow even more reckless after his memoir MY LIFE became a big bestseller. Thanks to his record-shattering $12 million book advance plus another $10 million in speaking fees, he was rolling...