By what methods, and with what success, did one single-party leader (Hitler) try

By what methods, and with what success, did one single-party leader (Hitler) try to eliminate domestic opposition?
To what extent did the structure and organization of government in Germany between 1933 and 1939 contribute to Hitler’s maintenance of power?
I need you to answer the questions above, in an analytical essay. I want to emphasize that the essay needs to be ANALYTICAL and not descriptive. Give multiple perspectives, and evaluate the different evidence.
Please make sure to reffer to the rubric attached to this assignment!