The turbulent history of the United States has provided a fertile ground for conspiracies, both real and imagined. From the American Revolution to the present day, conspiracy discourse—linguistic and symbolic practices and artifacts revolving around themes, claims, or accusations of conspiracy—has been a staple of political rhetoric. Some conspiracy theories never catch on with the public, while others achieve widespread popularity. Whether successful or not, the means by which particular conspiracy theories spread is a rhetorical process, a process in which persuasive language, symbolism, and arguments act upon individual minds within concrete historical and political settings.
     Conspiracy rhetoric was a driving force in the evolution of antebellum political culture, contributing to the rise and fall of the great parties in the nineteenth century. One conspiracy theory in particular—the "slave power" conspiracy—was instrumental in facilitating the growth of the young Republican Party's membership and ideology. The Political Style of Conspiracy analyzes the concept and reality of the "slave power" in the rhetorical discourse of the mid-nineteenth-century, in particular the speeches and writing of politicians Salmon P. Chase, Charles Sumner, and Abraham Lincoln. By examining their mainstream texts, Pfau reveals that, in addition to the "paranoid style" of conspiracy rhetoric that inhabits the margins of political life, Lincoln, Chase, and Sumner also engaged in a distinctive form of conspiracy rhetoric that is often found at the center of mainstream American society and politics.

In this book, Robert Hariman demonstrates how matters of style—of diction, manners, sensibility, decor, and charisma—influence politics.

In critical studies of classic texts, Hariman identifies four dominant political styles. The realist style, as found in Machiavelli's The Prince, creates a world of sheer power, constant calculation, and emotional control; this style is the common sense of modern political science. The courtly style, depicted in Kapuscinski's The Emperor, is characterized by high decorousness, hierarchies, and fixation on the body of the sovereign; this style infuses mass media coverage of the American presidency. The republican style, reflected in Cicero's letters to Atticus, promotes the art of oratory, consensus, and civility; it informs our ideal of democratic conversation. The bureaucratic style, as captured in Kafka's The Castle, emphasizes institutional procedures, official character, and the priority of writing; this style structures everday life.

Hariman looks at effective political artistry in figures from antiquity to modern politicians such as Vaclav Havel, Ronald Reagan, and Bill Clinton. He discusses the crises to which each style is susceptible, as well as the social and moral consequences of each style's success.