Re American demagogues

I hadn't seen this book since grad school days, when I cited its chapter on Jim and Miriam Ferguson of Texas in a critique of another student's paper about them, but stumbled on it in online research yesterday:  Reinhard H. Luthin, American Demagogues: Twentieth Century (1959).

I quote from the excellent introduction by the preeminent twentieth century U.S. historian, Allan Nevins (1890-1971):

"Th[e] sinister approach to public place and power, known as 'Machiavellianism,' which denies . . . moral ethics, and encourages deceit and duplicity toward fellowmen, has not yet been eliminated either in the totalitarian states or the free nations. Since the royal despots of Machiavelli's day, new types of unworthy leaders have appeared — in the authoritarian lands, sadistic dictators; in democracies, power-drunk demagogues. This book is concerned with the public careers of selected American demagogues of the present century — those 'masters of the masses' who, in their aspirations for political place and power, pandered to the passions and prejudices, rather than the reason, of the populace, and performed all manner of crowd-captivating tricks, only to betray the people."

He added, presciently:

"In a future fraught with complex social, economic, and diplomatic dilemmas, future demagogues will probably find more untapped areas of ignorance, prejudice, bigotry, and emotionalism to exploit. With television and other new means of mass communication, their voices and their faces may invade any home in the United States."