Sinclair Lewis (1885-1951)
Won the Nobel prize in literature in 1930. Ron Paul recently quoted Lewis on Hardball, probably from his book "It Can't Happen Here" (1925), a story about a fascist elected as American president (something which actually was a hair away from happening in the U.S. at one time).
"when fascism comes to this country, it will be wrapped in a flag carrying a cross."
audio is at onegoodmove.org