Mark J. Penn is an American former pollster, political strategist, and author. He is a former executive for Microsoft Corporation, and PR and advertising firm Burson-Marsteller.
Together with Doug Schoen, he was co-founder of the polling firm Penn Schoen Berland, whose clients included political and business leaders such as U.S. President Bill Clinton, British prime minister Tony Blair, and Bill Gates.
Penn later served as chief strategist and pollster to Hillary Clinton in her unsuccessful campaign for the Democratic nomination for the 2008 presidential election. In September 2007, he released a book titled Microtrends: The Small Forces Behind Tomorrow's Big Changes, which examines small trends sweeping the world. Penn is married to Nancy Jacobson, a professional fundraiser. He is currently a visiting lecturer at Harvard College.
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15. January 1954