It remained to be the biggest faction and competed with party powers in the House of Representative until the abolition of the House of Peers following the promulgation of the Constitution of Japan on May 2, 1947.
1947年5月2日の日本国憲法公布に伴う貴族院廃止まで最大会派の地位を保って衆議院の政党勢力と対抗した。