Over the past several decades, the number of women elected to higher office in the United States has grown substantially. However, when the electoral gains of women are considered on a state-by-state basis, there are observable variations in the rate by state at which women are elected to state legislative office. Scholars have noted an additional variation in women office holders: that women of color serve at higher rates than white women.

Becki Scola s book provides an explanation for these two interrelated puzzles on electoral gender gaps. She examines the factors surrounding the...