Mrs Palin, 47, had a one-night stand with Miami Heat basketball star Glen Rice less than a year before she eloped with her husband, the book claims.
Joe McGinniss's book The Rogue: Searching for the Real Sarah Palin, which is due to be published on September 20, also alleges that the former governor of Alaska is far from the traditional family woman she claims to be. In revelations which could strike a devastating blow to the controversial politician's hopes of joining the 2012 presidential race, Mrs Palin is said to have taken the class A drug with her husband, while smoking marijuana at college in secret liaisons with one of her professors. Sarah Palin snorted cocaine off a 55 gallon oil drum while snowmobiling with friends and had illicit affairs with a top NBA star and one of her husband's business partners, a new book sensationally claims. Claims: A new book alleges Sarah Palin has taken cocaine in the past and had a six-month affair with a former business partner of her husband Todd