Later he was a member of the Staatsrat of the GDR and the Central Committee of the SED .
He was a member of the SPD from 1920 to 1923 and after that of the KPD .
Later member was a member of the Staatsrat of the GDR and the Central Committee of the SED .
He was a member of the SPD from 1920 to 1923 and after that of the KPD .