Career
However the Jewish bloc decided to elect a Polish Duma member, in an attempt not to inflame anti-semitic feelings towards the Jewish community. Initially the Jewish bloc had approached Kucharzewski, but he declined the nomination. Thus the Jewish bloc had turned to Jagiełło, electing him as the deputy from Warsaw.
Once in the Duma, the Bolsheviks strongly objected to his admission to the Social-Democratic group because he was elected with the support of the bourgeoisie and the electoral bloc consisting of the Polish Socialist Party - Left and the Jewish Bund.
Under the pressure of Bolshevik deputies his rights in the group were restricted: on all internal Party matters he had voice but no vote.