This New York Times bestseller presents Sam Giancana—talented businessman, Las Vegas entrepreneur, ruthless killer, and outside player for the CIA's dirtiest deeds. Giancana clawed his way to the top of the Mafia hierarchy, partied with major stars such as Frank Sinatra and Marilyn Monroe, and did business with agents from the CIA to the Shah of Iran. When Joe Kennedy gave Giancana the chance to use mob muscle to get his son John elected, he jumped at it. But the Kennedy brothers double-crossed him, waging full-scale war on organized crime in the United States. His story changed the course of American history.