"I was wondering if anyone could provide me with some solid, in-depth books on big business support for fascism and Nazism, besides Guerin's Fascism and Big Business (which isn't very good at all) or Higam's Trading With The Enemy."
Regarding the Smedley Butler plot, a book titled (I think) The Plot to Seize the White House was published about 20 years ago; I don't recall who wrote it.
Ken Lawrence