Adolf Hitler was elected by the Nazi Party, which was also known as the National Socialist German Workers' Party, in the German Reichstag which was the legislative body in Weimar Germany.
Adolf Hitler . By 1933 , the Nazi Party was the largest elected party in the German Reichstag , which led to Hitler 's appointment as Chancellor on 30 January 1933 . Following fresh elections won by his coalition , the Reichstag passed the Enabling Act , which began the process of transforming the Weimar Republic into Nazi Germany , a one-party dictatorship based on the totalitarian and autocratic ideology of National Socialism . The National Socialist German Workers ' Party ( , abbreviated NSDAP ) , commonly referred to in English as the Nazi Party ( [ ˈnɑːtsi ] ) , was a political party in Germany that was active between 1920 and 1945 and practised the ideology of Nazism . The Reichstag ( English : Diet of the Realm ) was a legislative body of Weimar Germany ( the `` German Reich '' ) from 1919 , when it succeeded the Weimar National Assembly , until the Nazi takeover in 1933 .