Hugenberg was one of a number of Pan Germans to become involved in the National Liberal Party in the run up to the First World War. During the war, his views shifted sharply to the right. Accordingly, he switched his allegiance to the Fatherland Party and became one of its leading members, emphasising territorial expansion and anti-Semitism as his two main political issues. In 1919 Hugenberg followed most of the Fatherland Party into the German National People's Party ("Deutschnationale Volkspartei", DNVP), which he represented in the National Assembly (that produced the 1919 constitution of the Weimar Republic). He was elected to the "Reichstag" in the 1920 elections to the new body.