Editor-at-large at U.S. News & World Report and political analyst for CNN and PBS, David Gergen has served as a White House adviser to four presidents; Nixon, Ford, Reagan, and Clinton. He is also a professor at Harvard’s School of Public Leadership. An active participant in American national life for 30 years, Gergen has a lifetime of experience in observing and participating in high-capacity leadership, which he’s distilled into seven vital elements needed for future leaders. The author of Eyewitness to Power, he firmly believes that by identifying the traits of other leaders (and learning from their mistakes), we can increase our own effectiveness and leadership potential.