**About the Editor**

**Ernesto Casta ˜neda** is Associate Professor of Sociology at American University in Washington, DC. He conducts research on immigration, borders, Latin people, social movements, and health disparities. Castaneda is the author of "A Place to Call Home: Immigrant Belonging and Exclusion in ˜ New York, Paris, and Barcelona" (Stanford University Press 2018); "Building Walls: The Exclusion of Latin People in the U.S." (Lexington Books 2019), and with Charles Tilly and Lesley Wood "Social Movements 1768–2018" (Routledge 2020). He is the editor of "Immigration and Categorical Inequality: Migration to the City and the Birth of Race and Ethnicity" (Routledge 2018) and co-editor along with Cathy L. Schneider of "Collective Violence, Contentious Politics, and Social Change: A Charles Tilly Reader" (Routledge 2017). He has written for The Washington Post, Los Angeles Times, The Chicago Tribune, The Hill, CityLab, Medium, and NPR.
