立憲民政党
Unstable coalitions and divisiveness in the Diet led the Kenseikai ( "Constitutional Government Association") and the Seiyū Hontō ( "True Seiyūkai") to merge as the Rikken Minseitō ( "Constitutional Democratic Party") in 1927. The Rikken Minseitō platform was committed to the parliamentary system, democratic politics, and world peace. Thereafter, until 1932, the Seiyūkai and the Rikken Minseitō alternated in power.