Foundation On 24 February 2016 the
Democratic Party of Japan (DPJ) and the
Japan Innovation Party (JIP) announced that they were to merge at a special convention on 27 March to form a new opposition party in order to better compete with the ruling
Liberal Democratic Party (LDP) in an
Upper House election that was scheduled for later the same year. On 4 March 2016, the DPJ and JIP asked the public for suggestions for a name for the merged party. On 14 March 2016, the name of the new party was announced as
Minshintō (Democratic Progressive Party), the most popular shortlisted name among polled voters and preferred by the JIP, beating
Rikken Minshutō (Constitutional Democratic Party) that was preferred by the DPJ. On 18 March 2016, the official English language title of the new party was announced as the Democratic Party. On 22 March, the DPJ announced that 4 sitting Representatives from
Vision of Reform would join the party at its launch. The new party was founded on 27 March 2016 with the leadership consisting of
Katsuya Okada as party president,
Yukio Edano as secretary-general and
Shiori Yamao as policy chief. The party platform committed to protecting the existing pacifist
Japanese constitution, and stating opposition to the "
Abenomics" policies of Prime Minister
Shinzō Abe.
2016 House of Councillors election The
election on 10 July 2016 was the first major election contested by the new party. Following the merger, the party entered the election with 62 seats in the 242-seat House, with 45 of those 62 seats being contested. During the nomination period, the party signed an agreement with the
Japanese Communist Party (JCP),
Social Democratic Party and
People's Life Party to field a jointly-endorsed candidate in each of the 32 districts in which only one seat is contested, uniting in an attempt to take control of the House from the ruling LDP–
Komeito coalition. Despite the agreement, Democratic Party leader Okada stated that forming a coalition government with the JCP would be "impossible" in the near future due to some of the "extreme leftist policies" promoted by the JCP. The party had a total of 55 official candidates contesting the election, the same number as the DPJ in the 2013 election and the third-most behind the LDP and Communist Party. 33 candidates contested the single- and multi-member districts and 22 were in the party's list for the 48-seat national proportional representation block. Following the loss, Okada announced he would not seek re-election as leader at the party's annual meeting in September.
2017 Tokyo Metropolitan Assembly election and Renhō's resignation The 2017
Tokyo Metropolitan Assembly election caused the party to lose 13 seats in the Assembly, which left them with only 5 seats. This prompted both the secretary-general,
Yoshihiko Noda, on 25 July 2017, and the president of the party,
Renhō, on 27 July 2017, to resign. This is regarded as showing how public trust for the DP has declined. and
Yukio Edano, who declared his candidacy on 1 August. The election was won by Maehara.
2017 House of Representatives election and aftermath On 28 September 2017, Maehara announced that the party had abandoned plans to contest the
2017 general election scheduled for 22 October. The DP caucus in the
House of Representatives disbanded, with the party's existing representatives set to contest the election as candidates for the
Party of Hope recently formed by Tokyo governor
Yuriko Koike or as independents. On 2 October 2017, DP deputy president Yukio Edano announced the formation of the
Constitutional Democratic Party of Japan (CDP) for liberals and left-leaning members of the DP whom Koike had rejected for running as Party of Hope candidates. On 23 October 2017, in the aftermath of the election, Maehara announced his resignation as party president, with the CDP having replaced the DP as the largest opposition party in the lower house, while the DP continues to exist in the House of Councillors. On 31 October 2017, member of the House of Councillors
Kohei Otsuka was chosen as the leader of the Democratic Party to succeed Maehara.
Road to a new party In January 2018, the DP and the Party of Hope agreed to form a joint parliamentary group in both houses of the Diet, with each party remaining organisationally separate, but being subject to a common whip. However, several days later, the negotiations broke down. On 9 April 2018, it was announced that exploratory talks to merge the DP and Party of Hope into a new opposition party were being held. On 24 April 2018, the leadership of the DP and the Party of Hope announced in a joint press conference that both parties had agreed to merge in May 2018 under the name National Democratic Party. Several factions in both parties did not plan to join the new party. The members of these factions are expected to form their own splinter parties or remain as independents. The DP and Party of Hope merged to form the
Democratic Party For the People on 7 May 2018. ==Policies==