1)Hitler created concentration camps for those who opposed his regime, and he abolished all political parties except the Nazis, so he could basically get his way all the time. Also the development of the SS, or secret police, which would use repression and murder to preserve aryan race, its members were carefully chosen and taught racial ideology
2) the Nuremberg Laws which excluded German Jews from citizenship, forbade marriages between Jews and Germans. Excluded Jews politically, socially, and legally so that Hitler could now stress on his preservation of Aryan race
