Kammala jumla mai zuwa: Don magance "Centrolew", kafin zaɓen "Sejm" na 1930, 'yan siyasar "Centrolew" sun sha wahala matsin lamba (wanda aka fi sani da ɗaurin kurkuku a cikin Brest Fortress, da kuma
Gwaje-gwajen Brest). "Centrolew" ya ci nasara a zaben kuma ya rushe a matsayin hadin gwiwa.