Offering an important revision of conventional wisdom, Stanley Aronowitz demonstrates that class remains a potent force in the United States. Aronowitz shows that class need not be understood simply in terms of socioeconomic stratification, but rather as the power of social groups to make a difference. Aronowitz explains that social groups from different economic and political positions become ruling classes when they make demands that change the course of history. For instance, labor movements, environmental activists, and feminists have engaged in class struggles as their demands for power reconfigured the social order. The emerging global justice movements—comprised of activists from heterogeneous social and political backgrounds—also show potential for class formation. Written by a prominent scholar and social activist, this book offers a stunning reconceptualization of the meaning and significance of class in modern America.