How the Tumultuous ’70s Shaped Our Political Conflicts

The upheavals of the 1970s — the Watergate cover-up, defeat in Vietnam, racial conflict, and economic convulsions — formed the contours of today’s polarization, argue Princeton historians Kevin M. Kruse and Julian E. Zelizer. They joined Soledad O’Brien to discuss their new book, Fault Lines: A History of the United States Since 1974.