With How the States Shaped the Nation, Melanie Jean Springer places contemporary reforms in historical context and systematically explores how state electoral institutions have been instrumental in shaping voting behavior throughout the twentieth century. Although reformers often assume that more convenient voting procedures will produce equivalent effects wherever they are implemented, Springer reveals that this is not the case. In fact, convenience-voting methods have had almost no effect in the southern states where turnout rates are lowest. In contrast, the adverse effects associated with restrictive institutions like poll taxes and literacy tests have been persistent and dramatic. Ultimately, Springer argues, no single institutional fix will uniformly resolve problems of low or unequal participation. If we want to reliably increase national voter turnout rates, we must explore how states' voting histories differ and better understand the role of political and geographical context in shaping institutional effects.