David Corn is the author of the book ‘American Psychosis’. The book sustains a fast-paced, behind-the-scenes account of how the GOP since the 1950s has encouraged and exploited extremism, bigotry, and paranoia to gain power. Through the book several hidden histories reveal how Lincoln’s party formed alliances with extremists, kooks, racists and conspirators as well as how it fed fear, anger and resentment to win elections.