On August 7, Gustavo Petro was sworn-in as Colombia’s first-ever leftist president. Petro’s campaign platform promised important changes domestically and in foreign policy that could reshape Colombia’s relationship with the United States. In this episode, host Benjamin Gedan speaks with William Brownfield, a distinguished fellow at the Wilson Center and a former U.S. ambassador to Chile, Venezuela and Colombia, about the implications of Petro’s presidency for U.S.-Colombia ties.