This book, the second volume in The Styles in The American Politics series, provides a deep narrative and historical-descriptive analysis of how conservative think tanks shape United States foreign policy. It explores the "philosophy" behind these institutions, viewing them as the "brain" of American public policy where conservative spirit is personified into active political entities. The text specifically examines the transition from traditional conservatism to Neoconservatism, tracing how these intellectual hubs influence interconnected layers of government, public policy, and the common people. It also delves into the practical impact of these "idea warehouses," such as their role in the invasion of Iraq and their ongoing influence on trade, national security, and border control.