During the Second Katsura Cabinet, which was formed next, the Seiyu Party remained as the ruling party and during the Second Saionji Cabinet, the party expanded its influence lead by Takashi HARA and Masahisa MATSUDA.
つづく第2次桂内閣にも与党、第2次西園寺内閣のもとでは原敬・松田正久を中心に党勢を拡大する。