Flynn goes over a very detailed description of the rise of fascism in Italy and Germany, and compares these seeds to the operation of the American federal government at that time. He rails against the concentration of power in the federal government, and calls the actions of FDR the beginning of a totality, and the impotence of the Congress a consent to fascism in America. He criticizes the threat of FDR to pack the Supreme Court with poisoned justices in place of those who were over 70. He also criticizes the appropriation of funds (3.3 billion dollars) to FDR which were to be used at his discretion. Most of his discussion centers around the warning signs of socialism, fascism, and national socialism, but at the very end he mentions communism. A supporter of McCarthy after the book was written, it's interesting that he comes out and says that fascism is much more dangerous.
All in all, a great book to learn about the American condition in World War II from a viewpoint that doesn't characterize FDR as a hero, as all our mainstream history books do.