Answer:
Who changed the focus of the national socialist german workers' party in the 1920s, using propaganda to advocate expansionism and antisemitism?
Step-by-step explanation:
After the war, in 1919, Anton Drexler founded the German Workers Party, whose name gave the impression of being a Marxist party more than the many that swarmed in Germany at the time, but it was not.
In July of 1919, Hitler was infiltrated in the meetings of this party to detect potential extreme left coup-makers who could take power by force.
However, he was delighted by the guidelines that Drexler had imposed in this obscure new party: nationalist, anti-Marxist and anti-Semitic.
The answer is: Anton Drexler.