Douglas E. Schoen, author of Power: The 50 Truths, has been one of the most influential Democratic campaign consultants for more than 40 years. He is the founder of Schoen-Cooperman Research, a premier strategic research consulting firm, and he is widely recognized as one of the co-inventors of overnight polling. His political clients include former New York City mayor Michael Bloomberg and President Bill Clinton, and internationally, he has worked for the heads of state of over 15 countries.