This book investigates the accelerating process of electoral change and political realignment within contemporary democracies, specifically focusing on the shift in citizen and elite opinions from the 1970s to the 2010s. Russell J. Dalton, a prominent scholar in comparative politics, utilizes extensive longitudinal data to argue that the emergence of new political movements—such as Green parties and far-right factions—is a direct response to evolving economic and cultural cleavages. By mapping these shifts, the author demonstrates how party systems have restructured to accommodate new voter demands and the backlash against modernization.

Experts recognize this work as a rigorous empirical contribution to the study of party system evolution and democratic stability. Readers frequently note the academic density of the prose, which is supported by a comprehensive collection of time-series data.