Stassen lost some of his political base while overseas , whereas Republican candidates such as Thomas E. Dewey had a chance to increase theirs . Stassen was a delegate at the San Francisco Conference that established the United Nations , and was one of the US signatories of the United Nations Charter . He served as president of the University of Pennsylvania from 1948 to 1953 . His attempt to increase the prominence of the university football team was unpopular and soon abandoned . From 1953 to 1955 , he was the director of President Dwight D. Eisenhower 's short-lived Foreign Operations Administration
Conference
United Nations Conference on International Organization
Harold Stassen