The Nuremberg Laws and Kristallnacht had enforced Hitler's ideals of anti-semitism and maintained his power.
Explanation:
How it maintained his power was during his early political career in his book, "Mein Kampf" had shown the hatred for Jews as they were the cause of Germany's problems. Initially, he used the Jewish population as scape-goats to unite the German people against a common enemy. As he grew in power he started to enforce violence against Jews and eventually sent them to camps that were kept secret even to German citizens. They would usually display camps in propaganda films as a getaway reeducation center where all the Jews lived comfortably. Despite all of this, scapegoating did help him gain and maintain power but the prosecution of Jews further was unnecessary anymore as it just wasted manpower and materials to manage camps.