Liberal Party (Japan, 1890) saw the party reduced to 107 seats. In April 1896 it joined Itō Hirobumi's government and Liberal leader Itagaki Taisuke was appointed Minister of Home Affairs. After losing another two seats in the March 1898 elections, the party merged with Shimpotō in June 1898 to form the Kenseitō. Liberal Party (Japan, 1890) The Liberal Party (, "Jiyūtō") was a political party in Japan. The party was established in August 1890 by 130 members of the House of Representatives who had been elected in July, and was initially named the Constitutional Liberal Party (立憲自由党, "Rikken Jiyūtō"). It was a merger of
Social Democratic Party (Japan) expired in January 2018. Seiji Mataichi was elected unopposed in the ensuing leadership election and took office on 25 February 2018. Up for re-election in 2019 Up for re-election in 2022 Social Democratic Party (Japan) The Social Democratic Party (社会民主党 "Shakai Minshu-tō", often abbreviated to 社民党 "Shamin-tō"), also known as the Social Democratic Party of Japan (日本社会党, abbreviated to SDPJ in English) and previously as the Japan Socialist Party (JSP), is a political party that at various times advocated the establishment of a socialist Japan, until 1996. Since its reformation and name change in 1996, it has defined itself as