Seiji Maehara is a Japanese politician who has been a member of the House of Representatives of Japan since 1993. He founded and led the political party, Free Education for All, before its merger into Nippon Ishin no Kai on 3 October 2024.
Akira Nagatsuma is a Japanese politician of the Constitutional Democratic Party of Japan (CDP), a member of House of Representatives in the Diet. Nagatsuma is currently the deputy leader and the head of the Tokyo chapter of the CDP. He had served as the Minister of Health, Labour and Welfare in the Hatoyama and Kan administration. He came to prominence when he reported missing records of public pension plans. A native of Nerima, Tokyo and graduate of Keio University, he was elected for the first time in 2000 after unsuccessful runs in 1995 and 1996.
Yoshihiko Noda is a Japanese politician. He is the current leader of the Constitutional Democratic Party of Japan (CDP), and has been a member of the House of Representatives since 2000. From 2011 to 2012, he was the Prime Minister of Japan.
Goshi Hosono is a Japanese politician and a member of the House of Representatives in the Diet. A native of Ōmihachiman, Shiga and graduate of Kyoto University, he was elected to the House of Representatives for the first time in 2000. He was the Minister of Environment and Minister of State for Nuclear Power Policy and Administration in the cabinet of Yoshihiko Noda. He represents the 5th District of Shizuoka prefecture.
Sumio Mabuchi is a Japanese politician and a member of the House of Representatives in the Diet.
Kenta Izumi is a Japanese politician who served as leader of the Constitutional Democratic Party of Japan (CDP) from 2021 to 2024. He is also a member of the House of Representatives in the National Diet, currently for the Kyoto 3rd district. He was first elected in 2000 under the Democratic Party of Japan. He served as Parliamentary Vice-Minister of the Cabinet Office from 2009 to 2010. After that, he served as chairman of the National Diet Measures Committee and Political Affairs Research Chairman of the Kibō no Tō, the Democratic Party for the People, and the Constitutional Democratic Party of Japan.
Yukio Edano is a Japanese politician who served as the leader of the Constitutional Democratic Party of Japan from its formation in 2017 until 2021.
Junya Ogawa is a Japanese politician of the Constitutional Democratic Party, and a member of the House of Representatives in the Diet. A native of Takamatsu, Kagawa and graduate of the University of Tokyo, he joined the Ministry of Home Affairs in 1994. Leaving the ministry in 2003, he ran unsuccessfully for the House of Representatives in the same year. Two years later, he ran again and lost for a second time. He ran for a third time in 2009 and was elected for Kagawa 1st district.
General elections were held in Japan on August 30, 2009 to elect the 480 members of the House of Representatives. The opposition Democratic Party of Japan (DPJ) defeated the ruling coalition in a landslide, winning 221 of the 300 constituency seats and receiving 42.4% of the proportional block votes for another 87 seats, a total of 308 seats to only 119 for the LDP.
General elections were held in Japan on 16 December 2012. Voters gave the Liberal Democratic Party a landslide victory, ejecting the Democratic Party from power after three years. It was the fourth worst defeat suffered by a ruling party in Japanese history.
The 2011 Democratic Party of Japan leadership election took place on August 29, 2011. The election chose Yoshihiko Noda as the successor to Naoto Kan as president of the Democratic Party (Minshutō) of Japan. The designation of the new party president as prime minister in the Diet took place on August 30; Kan remained as acting prime minister until his successor's formal appointment ceremony with the Emperor. In June 2011, Kan had announced to resign once three conditions have been met: passage of the second extra budget for fiscal 2011, passage of a bill to promote the use renewable energy and passage of a bill to issue new debt covering bonds. The extra budget was passed in July; after an agreement with the opposition was struck on reforming the child allowance introduced by the Democratic Party, the renewable energies bill and the bond ceiling increase passed through the Diet on August 26, 2011.
Banri Kaieda is a Japanese politician who is serving as the Vice Speaker of the House of Representatives of Japan since 2021. A member of the House of Representatives of Japan, he also served as the President of the Democratic Party of Japan between 2012 and 2014. He was a former minister in the Kan cabinet.
General elections were held in Japan on 22 October 2017. Voting took place in all Representatives constituencies of Japan – 289 single-member districts and eleven proportional blocks – in order to appoint all 465 members of the House of Representatives, the lower house of the then 707-member bicameral National Diet of Japan. Incumbent Prime Minister Shinzō Abe's governing coalition of the Liberal Democratic Party (LDP) and the Komeito party retained their seats in signs of what was perceived as weak opposition. Abe won his fourth term in office and held on to the two-thirds supermajority in order to implement policies on revising the war-renouncing Article 9 of the Japanese Constitution.
The Democratic Party, was a political party in Japan. It was the largest opposition political party in Japan from 2016 until its marginalization in the House of Representatives in 2017. The party was founded on 27 March 2016 from the merger of the Democratic Party of Japan and the Japan Innovation Party. The majority of the party split on 28 September 2017, before the 2017 general election. Many of its members contesting the election as candidates for the Party of Hope, Constitutional Democratic Party of Japan or as party members without nomination. On 7 May 2018 the DP merged with the Party of Hope to form the Democratic Party For the People.
A by-election for the Hokkaido-5th seat in the Japanese House of Representatives was held on 24 April 2016, coinciding with another by-election in Kyoto. The by-election was triggered by the death of the sitting member, former Speaker of the House and Foreign Minister Nobutaka Machimura from cerebral infarction in Osaka on 1 June 2015. Machimura, a member of the Liberal Democratic Party, was a long-serving representative for the district, holding the seat almost continuously between 1996 and 2015. The seat has been considered safe for the LDP, with Machimura retaining it on a 14.1% margin in the 2014 general election.
Yuichiro Tamaki is a Japanese politician and the leader of the Democratic Party For the People (DPFP). He is a member of the House of Representatives, and a former leader of Kibō no Tō. Before joining Kibō, Tamaki was a member of the Democratic Party.
The Group of Independents was a parliamentary group in the House of Representatives, the lower house of the Japanese National Diet. It consisted exclusively of non-party deputies, many of whom were formerly members of the Democratic Party.
General elections were held in Japan on 27 October 2024 due to the early dissolution of the House of Representatives, the lower house of the National Diet, by Prime Minister Shigeru Ishiba. Voting took place in all constituencies, including proportional blocks, to elect all 465 members of the House of Representatives.
The Constitutional Democratic Party of Japan is a liberal political party in Japan. It is the primary centre-left party in Japan, and as of 2024 is the second largest party in the National Diet behind the ruling Liberal Democratic Party (LDP).
The 2024 Constitutional Democratic Party of Japan presidential election took place on 23 September 2024, electing the next president of the Constitutional Democratic Party of Japan for a 3-year term at the expiration of the current party leader Kenta Izumi's term. The winner of this election, Yoshihiko Noda led the party in the 2024 Japanese general election, and will led them in the 2025 Japanese House of Councillors election.
