Based on original research with women voters of varying ages around the United States from 2008 to the present, the book delves into differences between voting women and men-and indeed among women themselves. The gender gap, the author argues, exists because women's social identity is tied to their group memberships and gender-role beliefs. Thus, rather than grouping all women into one voting bloc, the book examines how gender identity influences various sub-groups of women. It begins with a discussion of the gender gap in voting preferences throughout history, then goes on to explore the roles of feminism and women's connectedness to their gender group as a primary cause of the gender gap in voting. The remaining chapters discuss how these factors influence women's political engagement, policy positions, and candidate preferences.