Under Cover - My Four Years in the Nazi Underworld of America by John Roy Carlson (1943) (Remember the USA is a Republic and NOT a Democracy)
The meaning of the word Republic is no longer taught in USA public schools, they teach the students the USA is a Democracy, which is not true. The textbooks for the last 50 years have been expunged of the word Republic which has been replaced with Democracy. Teach yourself the difference in meaning, look it up.
Denver is planned to be the Capital of the New USSA, first revealed in this book c1943.
Under Cover is not so much an expose of the work of alien Nazi or Fascist (Romish) agents as it is, ultimately,, a warning to America of those factors which have led to the development of a nativist, nationalist, American Nazi or American Fascist (Romish) movement which like a spearhead is poised to stab at Democracy. Vatican led New World Order, the amazing revelation of how axis agents and our enemies within are now plotting to destroy the United States.
The book is now public domain; no reprinting, no copywright renewal.