Weintraub's research focuses on armed group behavior in civil war, politically-motivated violence, organized criminality, long-run historical legacies, electoral mechanisms in divided societies, and state-building. He has articles published or forthcoming in the Journal of Politics, Journal of Conflict Resolution, Conflict Management and Peace Science, Terrorism and Political Violence, Research & Politics, Journal of Theoretical Politics, and Critical Review. Weintraub received his Ph.D. in Government from Georgetown University in May 2014 and has been a Predoctoral Fellow at Yale University's Program on Order, Conflict, and Violence (2013-2014) and a Jennings Randolph Peace Scholar at the United States Institute of Peace (2012-2013).