Following the Communist Party's rise to power in 1948, in 1949 Korbel applied for political asylum in the United States stating that he would be arrested in Czechoslovakia for his "faithful adherence to the ideals of democracy." He received asylum and also a grant from the Rockefeller Foundation to teach international politics at the University of Denver. In 1964, with the benefaction of Ben Cherrington, Korbel established the Graduate School of International Studies and became its founding Dean. One of his students was Condoleezza Rice, the first woman appointed National Security Advisor (2001) and the first African-American woman appointed Secretary of State (2005). Korbel's daughter Madeleine became the first female Secretary of State in 1997. Both of them have testified to his substantial influence on their careers in foreign policy and international relations.