Ira Katznelson is Ruggles Professor of Political Science and History. His Fear Itself: The New Deal and the Origins of Our Time (2013) was awarded the Bancroft Prize in History and the Woodrow Wilson Foundation Award in Political Science. His most recent books are Southern Nation: Congress and White Supremacy after Reconstruction (2020) and Time Counts: Quantitative Methods for Historical Social Science (2022). Professor Katznelson, a former president both of the American Political Science Association and the Social Science Research Council, served as Columbia’s Interim Provost from 2019-2021. He earned his BA at Columbia College and his PhD in History at the University of Cambridge, where he is a research associate at the Centre for History and Economics.