立憲政友會
In 1913, Takahashi was appointed Minister of Finance by Prime Minister Yamamoto Gonnohyōe and then joined the "Rikken Seiyūkai" political party. He was re-appointed by Prime Minister Hara Takashi in 1918. In 1920, Takahashi's title was elevated to viscount ("shishaku"). After Hara was assassinated in 1921, Takahashi was appointed both Prime Minister and the "Rikken Seiyūkai" party president.