 Kọ itẹsiwaju fun paragirafi yii - Lati ọdun 1920 si 1930, Raumer jẹ ọmọ ẹgbẹ Reichstag fun apa ọtun ti DVP. Láti June 1920 sí May 1921, ó jẹ Reichsschatzminister Ojú-òfin nínú ilé-iṣẹ Konstantin Fehrenbach. O dojukọ lori ibeere ti awọn atunṣe ogun - sinu iṣẹ rẹ ṣubu Apejọ Spa : ti July 1920, idilọwọ awọn ijiroro nipasẹ awọn Allies ni January 1921 ati iṣẹ ti Duisburg ati Düsseldorf ni March 1921. 