Liberal Democratic Party (Japan) in the context of "2016 Japanese House of Councillors election"

The Government of Japan is the central government of Japan. It consists of legislative, executive and judiciary branches and functions under the framework established by the Constitution of Japan. Japan is a unitary state, containing forty-seven administrative divisions, with the emperor as its head of state. His role is ceremonial and he has no powers related to the Government. Instead, it is the Cabinet, comprising the prime minister and the ministers of state, that directs and controls the government and the civil service. The Cabinet has the executive power and is formed by the prime minister, who is the head of government. The Prime Minister is nominated by the National Diet and appointed to office by the Emperor. The current cabinet is the Takaichi Cabinet, which is led by prime minister Sanae Takaichi, who assumed office on 21 October 2025. The country has had a Liberal Democratic minority government since 2025.

The National Diet is the legislature, the organ of the Legislative branch. The Diet is bicameral, consisting of two houses with the House of Councilors being the upper house, and the House of Representatives being the lower house. The members of both houses of the Diet are directly elected by the people, who are the source of sovereignty. The Diet is defined as the supreme organ of sovereignty in the Constitution. The Supreme Court and other lower courts make up the Judicial branch and have all the judicial powers in the state. The Supreme Court has ultimate judicial authority to interpret the constitution and the power of judicial review. The judicial branch is independent from the executive and the legislative branches. Judges are nominated or appointed by the Cabinet and never removed by the executive or the legislature except during impeachment.

The Cabinet of Japan (内閣, Naikaku; Japanese pronunciation: [naꜜi.ka.kɯ]) is the chief executive body of the government of Japan. It consists of the prime minister, who is appointed by the Emperor after being nominated by the National Diet, in addition to up to nineteen other members, called ministers of state. The current cabinet, the Takaichi Cabinet, was formed on 21 October 2025 and is led by Prime Minister Sanae Takaichi. The country has had a Liberal Democratic minority government since 2025.

The prime minister is nominated by the National Diet, while the remaining ministers are appointed and dismissed by the prime minister. The Cabinet is collectively responsible to the National Diet and must resign if a motion of no confidence is adopted by the National Diet.

The prime minister of Japan (内閣総理大臣, Naikaku Sōri Daijin; Japanese pronunciation: [naꜜi.ka.kɯ | soː.ɾʲi daꜜi.dʑiɴ]) is the head of government of Japan. The prime minister chairs the Cabinet of Japan and has the ability to select and dismiss its ministers of state. The prime minister also serves as the commander-in-chief of the Japan Self Defence Forces. The incumbent prime minister, Sanae Takaichi, took office on 21 October 2025; she is the first woman to serve as either president of the Liberal Democratic Party or prime minister.

The National Diet (parliament) nominates the prime minister from among its members (typically from among the members of the House of Representatives). They are then formally appointed by the emperor. The prime minister must retain the confidence of the House of Representatives to remain in office. The prime minister lives and works at the Naikaku Sōri Daijin Kantei (Prime Minister's Official Residence) in Nagatachō, Chiyoda, Tokyo, close to the National Diet Building.

Sanae Takaichi (born 7 March 1961) is a Japanese politician who is serving as Prime Minister of Japan and President of the Liberal Democratic Party since 2025. She is the first woman to hold either of these positions. A member of the House of Representatives from 1993 to 2003 and since 2005, she also held several ministerial posts during the premierships of Shinzo Abe and Fumio Kishida.

Born and raised in Nara Prefecture, Takaichi graduated from Kobe University and worked as an author, legislative aide, and broadcaster before beginning her political career. Elected as an independent to the House of Representatives in the 1993 general election, she joined the Liberal Democratic Party (LDP) in 1996. A protégé of Prime Minister Abe, she held various positions during Abe's premiership, most notably as Minister for Internal Affairs and Communications. She was a candidate in the 2021 LDP leadership election, but was eliminated before the runoff, placing third. From 2022 to 2024, during Fumio Kishida's premiership, she served as the Minister of State for Economic Security.

Shigeru Ishiba (born 4 February 1957) is a Japanese politician who served as Prime Minister of Japan and President of the Liberal Democratic Party (LDP) from 2024 until his resignation in 2025. He has represented Tottori 1st in the House of Representatives since 1996. Before his premiership, he was the Minister of Defense from 2007 to 2008 and Minister of Agriculture, Forestry and Fisheries from 2008 to 2009, as well as secretary-general of the LDP from 2012 to 2014.

Born into the Ishiba political family in Tokyo, Ishiba graduated from Keio University in 1979. Prior entering politics after his father's death, Ishiba worked at a bank before being elected to the House of Representatives in the 1986 general election as a member of the LDP at the age of 29. As a Diet member, Ishiba specialized in agricultural policy and defense policy. He served as parliamentary vice minister of agriculture under the premiership of Kiichi Miyazawa, but left the LDP in 1993 to join the Japan Renewal Party. After transitioning through several parties and returning to the LDP in 1997, Ishiba held various prominent positions, including Director-General of the Defense Agency under the premiership of Junichiro Koizumi, Minister of Defense under the premiership of Yasuo Fukuda and Minister of Agriculture, Forestry and Fisheries under the premiership of Tarō Asō.

The 2025 Liberal Democratic Party presidential election was held on 4 October 2025 to elect the next president of the Liberal Democratic Party of Japan. The election was triggered by the resignation of Prime Minister and LDP president Shigeru Ishiba, which was announced on 7 September 2025, amid infighting within the LDP and pressure for a snap election. Ishiba's resignation also came amid the LDP's poor performance in the 2024 general election and the 2025 House of Councillors election, which resulted in the party losing its majority in both chambers.

In this election, all five candidates that ran for the LDP leadership previously ran unsuccessful campaigns in the past. Running in the election were: former Minister of State for Economic Security Sanae Takaichi, Agricultural Minister Shinjirō Koizumi, Chief Cabinet Secretary Yoshimasa Hayashi, former Economic Minister Takayuki Kobayashi and former foreign minister Toshimitsu Motegi.

The Japan Innovation Party (日本維新の会, Nippon Ishin no Kai; Japan Restoration Association) is a conservative, centre-right to right-wing and populist political party in Japan.

The party was as Initiatives from Osaka in October 2015 from a split in the old Japan Innovation Party. It became the third-biggest opposition party in the National Diet following the 2016 House of Councillors election. Since 2025, the party has been in a coalition agreement to provide confidence and supply to the governing Liberal Democratic Party (LDP).

The Liberal Democratic Party–Komeito coalition was an alliance in Japan between the Liberal Democratic Party (LDP) and Komeito. A coalition government between the parties has been established twice: the first from 5 October 1999 to 16 September 2009, and the second from 26 December 2012 to 10 October 2025, when Komeito announced their exit from the coalition.

The Liberal Democratic Party (LDP) and the Japan Innovation Party (JIP) formed a coalition on 20 October 2025. Established after the collapse of the LDP–Komeito coalition, it constitutes the basis of the governing Takaichi Cabinet, which was formed 21 October 2025. Currently, the LDP holds all ministerial posts in the coalition government. The two parties are aligned on national policies and National Diet strategies.