David Richmond Gergen (born May 9, 1942) is an American political commentator and former presidential adviser who served during the administrations of Richard Nixon, Gerald Ford, Ronald Reagan, and Bill Clinton. He is currently a senior political analyst for CNN and a professor of public service and the founding director of the Center for Public Leadership at the Harvard Kennedy School. Gergen is also the former editor at large of U.S. News & World Report and a contributor to CNN.com and Parade ...