On the other hand, the Seiyukai was benefited by gaining the ministerial posts in the first Yamamoto Cabinet, which enraged not only the general public but also the Rikken Kokuminto members, and even some of the Seiyukai members including Yukio OZAKI, who resented it and left the Seiyukai together with Kunisuke OKAZAKI (although Okazaki returned to the Seiyukai later, Ozaki established a new party 'Chuseikai' [Centrist Justice Party]).
一方、第1次山本内閣への入閣という形で利益を得る事になった立憲政友会に対して、国民はもちろんの事、立憲国民党や政友会内部からも反発が噴出して尾崎行雄は岡崎邦輔らとともに政友会を離党する（岡崎は後に復党するが、尾崎はそのまま中正会を結党した）。