The latest crop of speakers at election rallies were not just amateurs, but trained specialists who had gone through a new speakers’ school, which Fritz Reinhardt had founded on his own initiative. Hitler officially recognized it in April 1929, but it was Himmler—​when still involved with propaganda—​together with Reinhardt who wanted to use the school in order to control the content of what the speakers delivered.

Robert Gellately, Hitler's true believers: how ordinary people became Nazis, New York, New York, 2020, p. 126