Countries such as Russia and Iran are influencing U.S. politics by spreading disinformation and propaganda through social media. At the same time, the Trump administration’s rejection of long-negotiated agreements such as the Trans-Pacific Partnership and the Paris Agreement has arguably altered perceptions of the U.S. among its allies.Jacob N. Shapiro joins Before the Ballot to discuss the rapid changes in American foreign policy since 2016, and what might lie beyond Nov. 3.Shapiro is professor of politics and international affairs at Princeton University and directs the Empirical Studies of Conflict Project. ABOUT THE SHOWBefore the Ballot is a podcast series designed to educate voters before they cast their ballots this November. It features faculty at the Princeton School of Public and International Affairs. The show is hosted by Elisabeth Donahue, associate dean of public affairs and communications. It is produced and edited by Henry Barrett ’22 and B. Rose Huber, communications manager and senior writer. Sarah Binder, communications specialist, wrote these summaries.