At the Congress, Joffe was elected a candidate (non-voting) member of the Central Committee, but two days later, on August 5, the Central Committee, some of whose members were in prison, in hiding or lived far from Petrograd and couldn't attend its meetings, made Joffe a member of its permanent ("narrow") bureau.
Di Kongres, Joffie terpilih menjadi anggota kandidat (non-voting) Komite Pusat, namun dua hari kemudian, pada 5 Agustus, beberapa anggota Komite Pusat tersebut ditahan, bersembunyi atau tinggal jauh dari Petrograd dan tidak dapat menghadiri pertemuannya. menjadikan Joffe anggota biro permanen-nya.