# 2024 Constitutional Democratic Party of Japan presidential election

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.
Former Prime Minister and President of the Democratic Party of Japan Yoshihiko Noda won the election in a second round runoff, defeating opponent Yukio Edano, former party president and the party's founder.

## Election procedure

The Rules for Election of Constitutional Democratic Party Presidents establish the election process for the CDP president. To qualify as a candidate officially, a candidate must be a CDP member of the National Diet and receive a nomination from at least 20 fellow CDP Diet members.
The CDP selects its leader via a two-round election involving CDP members of the Diet, local lawmakers in all 47 prefectures, and dues-paying party members from across Japan. A total of 740 points will be distributed amongst the electorate. 370 points are allocated to national lawmakers and prospective candidates; 272 of those points are assigned to the party's 136 Diet members, including the vice speaker of both houses of the Diet, at 2 points each, while 98 points are allocated to prospective candidates in national elections, at 1 point each. Meanwhile, groups of 1,236 local assembly members across the country and 114,792 rank-and-file party members and supporters are allocated 185 points each. If any candidate wins a majority (over 50%) of votes in the first round, that candidate is elected party president.
If no candidate receives a majority of votes in the first round, a runoff is held immediately between the top two candidates. The candidate who wins the most votes in the runoff is then elected president.

### Election Administration Committee
#### Chair

* Saori Yoshikawa (Councillor for National PR; Member of Sanctuary)

#### Members

* Yūnosuke Sakamoto (Representative for Northern Kanto PR; Member of the Bridge Society)
* Jiro Hata (Councillor for Nagano at-large district; Member of the Shin Seiken Kenkyūkai)
* Haruko Miyaguchi (Councillor for Hiroshima at-large district; Member of the Shin Seiken Kenkyūkai and Chokkan no Kai)
* Yuki Baba (Representative for Tohoku PR; Unaffiliated)

## Background

Following the resignation of the then-party president Yukio Edano after the party's poor performance in the 2021 Japanese general election, former 2020 leadership contender and Parliamentary Secretary of the Cabinet Office Kenta Izumi was elected in 2021, defeating former Mayor of Niseko and fellow Diet member Seiji Osaka in a second round runoff.
The main issues expected to be discussed during the presidential election are the nature of the opposition parties' joint struggle to rebuild the party and the pros and cons of the “realistic course” of Izumi's fundamental policies, such as security and energy.

## Campaign

The race formally begun on September 7, with four candidate able to qualify with 20 sponsors: former Prime Minister Yoshihiko Noda, former party president Yukio Edano, incumbent party president Kenta Izumi and first-term diet member Harumi Yoshida.

## Candidates
### Declared

| Candidate(s) | Date of birth | Current position | Party faction | Electoral district |
| Yukio Edano | (1964-05-31)31 May 1964 (age 60) | Member of the House of Representatives (since 1993) Previous offices held President of the Constitutional Democratic Party of Japan (2017-2021) Minister of Economy, Trade and Industry (2011-2012) Chief Cabinet Secretary (2011) Minister of State for Government Revitalisation (2010; 2011) Minister of State for Okinawa and Northern Territories Affairs (2011) Minister for Foreign Affairs (2011) | Sanctuary (Kondō) Kuni no Katachi Kenkyūkai (Kan) | Saitama 5th district |
| Kenta Izumi | (1974-07-29)29 July 1974 (age 50) | President of the Constitutional Democratic Party of Japan (since 2021) Member of the House of Representatives (since 2003) Previous offices held Parliamentary Secretary of the Cabinet Office (2009–2010) | Shin Seiken Kenkyūkai (Izumi) | Kyoto 3rd district |
| Yoshihiko Noda | (1957-05-20)20 May 1957 (age 67) | Member of the House of Representatives (since 2000; 1993-1996) Previous offices held Secretary-General of the Democratic Party of Japan (2016-2017) Prime Minister (2011-2012) President of the Democratic Party of Japan (2011-2012) Minister of Finance (2010-2011) Senior Vice Minister of Finance (2009-2010) | Kasaikai (Noda) | Chiba 4th district |
| Harumi Yoshida | (1972-01-01)1 January 1972 (age 52) | Member of the House of Representatives (since 2021) | None | Tokyo 8th district |

### Supporters

Party regulations require at least 20 Diet members’ support to run.

#### List of supporters

* Kaori Ishikawa (Member of the House of Representatives for Hokkaido 11th district)
* Masako Ōkawara (Member of the House of Representatives for Tokyo Kanto PR block)
* Kureha Otsuki (Member of the House of Representatives for Hokkaido PR block)
* Hiroshi Kamiya (Member of the House of Representatives for Hokkaido PR block)
* Shoichi Kondo (Member of the House of Representatives for Aichi 3rd district)
* Mitsu Shimojo (Member of the House of Representatives for Nagano 2nd district)
* Issei Yamagishi (Member of the House of Representatives for Tokyo 9th district)
* Michiyoshi Yunoki (Member of the House of Representatives for Chugoku PR block)
* Hajime Yoshikawa (Member of the House of Representatives for Kyushu PR block)
* So Watanabe (Member of the House of Representatives for Miyazaki 1st district)
* Taiga Ishikawa (Member of the House of Councillors from National PR block)
* Sakura Uchikoshi (Member of the House of Councillors from Niigata)
* Kenji Katsube (Member of the House of Councillors from Hokkaido)
* Makiko Kishi (Member of the House of Councillors from National PR block)
* Hiroto Kumagai (Member of the House of Councillors from Saitama)
* Chikage Koga (Member of the House of Councillors from National PR block)
* Mari Takagi (Member of the House of Councillors from Saitama)
* Maiko Tajima (Member of the House of Councillors from Aichi)
* Tetsuro Fukuyama (Member of the House of Councillors for Kyoto)
* Takashi Moriya (Member of the House of Councillors from National PR block)

#### List of supporters

* Atsushi Oshima (Member of the House of Representatives for Saitama 6th district)
* Kensuke Onishi (Member of the House of Representatives for Aichi 13th district)
* Shinji Oguma (Member of the House of Representatives for Fukushima 4th district)
* Hiroshi Kawauchi (Member of the House of Representatives for Kyushu PR block)
* Takashi Kii (Member of the House of Representatives for Fukuoka 10th district)
* Daiki Michishita (Member of the House of Representatives for Hokkaido 1st district)
* Takashi Midorikawa (Member of the House of Representatives for Akita 2nd district)
* Hiroyuki Moriyama (Member of the House of Representatives for Kinki PR block)
* Tsunehiko Yoshida (Member of the House of Representatives for Tokai PR block)
* Ryuichi Yoneyama (Member of the House of Representatives for Niigata 5th district; Former Governor of Niigata Prefecture)
* Shu Watanabe (Member of the House of Representatives for Tokai PR block)
* Michihiro Ishibashi (Member of the House of Councillors from National PR block)
* Makoto Oniki (Member of the House of Councillors from National PR block)
* Yukihito Koga (Member of the House of Councillors from Fukuoka)
* Shinichi Shiba (Member of the House of Councillors from National PR block)
* Hideya Sugio (Member of the House of Councillors from Nagano)
* Masayo Tanabu (Member of the House of Councillors from Aomori)
* Eri Tokunaga (Member of the House of Councillors from Hokkaido)
* Kyoko Murata (Member of the House of Councillors for National PR block)
* Shinji Morimoto (Member of the House of Councillors from Hiroshima)

#### List of supporters

* Yoichiro Aoyagi (Member of the House of Representatives for Southern Kanto PR block)
* Yamato Aoyama (Member of the House of Representatives for Northern Kanto PR block)
* Shunsuke Ito (Member of the House of Representatives for Tokyo Kanto PR block)
* Sayuri Kamata (Member of the House of Representatives for Miyagi 2nd district)
* Makiko Kikuta (Member of the House of Representatives for Niigata 4th district)
* Kentaro Genma (Member of the House of Representatives for Shizuoka 8th district)
* Takeshi Kozu (Member of the House of Representatives for Hokuriku-Shinetsu PR block)
* Koji Sato (Member of the House of Representatives for Hiroshima 6th district)
* Kazuhiko Shigetoku (Member of the House of Representatives for Aichi 12th district)
* Kaname Tsutsumi (Member of the House of Representatives for Fukuoka 5th district)
* Manabu Terata (Member of the House of Representatives for Tohoku PR block)
* Katsuhito Nakajima (Member of the House of Representatives for Southern Kanto PR block)
* Kazuma Nakatani (Member of the House of Representatives for Southern Kanto PR block)
* Takeshi Noma (Member of the House of Representatives for Kagoshima 3rd district)
* Yutaka Banno (Member of the House of Representatives for Tokai PR block)
* Hideshi Futori (Member of the House of Representatives for Kanagawa 13th district)
* Satoshi Honjo (Member of the House of Representatives for Chiba 8th district)
* Toshikazu Morita (Member of the House of Representatives for Saitama 12th district)
* Hirofumi Ryu (Member of the House of Representatives for Kanagawa 9th district)
* Ai Aoki (Member of the House of Councillors from National PR block)

#### List of supporters

* Masaharu Nakagawa (Member of the House of Representatives for Tokai PR block; Former Minister of Education, Culture, Sports, Science and Technology)
* Tomoko Abe (Member of the House of Representatives for Kanagawa 12th district)
* Yutaka Arai (Member of the House of Representatives for Hokkaido PR block)
* Kenji Eda (Member of the House of Representatives for Kanagawa 8th district)
* Akiko Okamoto (Member of the House of Representatives for Tohoku PR block)
* Soichiro Okuno (Member of the House of Representatives for Chiba 9th district)
* Takayuki Ochiai (Member of the House of Representatives for Tokyo 6th district)
* Naoto Kan (Member of the House of Representatives for Tokyo 18th district; Former Prime Minister)
* Kōichirō Genba (Member of the House of Representatives for Fukushima 3rd district; Former Minister for Foreign Affairs)
* Natsumi Sakai (Member of the House of Representatives for Tokyo 15th district)
* Shu Sakurai (Member of the House of Representatives for Kinki PR block)
* Yosuke Suzuki (Member of the House of Representatives for Tokyo PR block)
* Hajime Yatagawa (Member of the House of Representatives for Southern Kanto PR block)
* Makoto Yamazaki (Member of the House of Representatives for Southern Kanto PR block)
* Katsuhiko Yamada (Member of the House of Representatives for Nagasaki 3rd district)
* Yuki Waseda (Member of the House of Representatives for Kanagawa 4th district)
* Noriko Ishigaki (Member of the House of Councillors from Miyagi)
* Masayoshi Okumura (Member of the House of Councillors from National PR block)
* Ryuhei Kawada (Member of the House of Councillors from National PR block)
* Hiroyuki Konishi (Member of the House of Councillors from Chiba)
* Ayaka Shiomura (Member of the House of Councillors from Tokyo)

### Declined

* Kenji Eda, Executive Deputy President of the CDP (2020–2022), Leader of the Japan Innovation Party (2014–2015), Member of the House of Representatives (2005–present; 2002–2003) (endorsed Yoshida)
* Sumio Mabuchi, Minister of Land, Infrastructure, Transport and Tourism (2010–2011), State Minister of Land, Infrastructure, Transport and Tourism (2009–2010), Member of the House of Representatives (2019–present; 2003–2017)
* Chinami Nishimura, Executive Deputy President of the CDP (2022–present); Secretary-General of the CDP (2021–2022), State Minister of Health, Labour and Welfare (2011–2012), Parliamentary Vice-Minister for Foreign Affairs (2009–2010), Member of the House of Representatives (2014–present; 2003–2012)
* Junya Ogawa, Member of the House of Representatives (2005–present) (endorsed Noda)
* Kazuhiko Shigetoku, Member of the House of Representatives (2012–present) (endorsed Noda)

## Pre-election endorsements
### Former Prime Ministers

* Naoto Kan (Chairman of the Kuni no Katachi Kenkyūkai; Prime Minister, 2010–2011; Deputy Prime Minister, 2009–2010; Minister of Finance, 2010; Minister of Health and Welfare, 1996; Member of the House of Representatives for Tokyo 18th district)

### Members of the National Diet

* Junya Ogawa (Member of the House of Representatives for Kagawa 1st; 2021 leadership candidate)

### Party factions

* Kazuhiko Shigetoku (Chairman of Chokkan no Kai; Member of the House of Representatives for Aichi 12th district)
* Ichirō Ozawa (Chairman of Isseikai; Member of the House of Representatives for Tohoku PR)

## Opinion polls

(Figures in parentheses are approval ratings of Constitutional Democratic Party supporters)
| Fieldwork date | Polling firm | Sample size | Yoshihiko Noda | Yukio Edano | Kenta Izumi | Harumi Yoshida | Kenji Eda | Sumio Mabuchi | Chinami Nishimura | Junya Ogawa | Seiji Osaka | Others | NOT/ UD/NA |
| 21–22 Sep 2024 | ANN | 1,012 | 39 | 18 | 9 | 8 | – | – | – | – | – | – | 26 |
| 21 Sep 2024 | SSRC | 2,044 | 30 (58) | 10 (18) | 5 (9) | 6 (11) | – | – | – | – | – | – | 49 (4) |
| 15–16 Sep 2024 | Kyodo News | N/A | (58.8) | (20.9) | (7.6) | (7.8) | – | – | – | – | – | – | (4.8) |
| 14–15 Sep 2024 | go2senkyo/JX | 992 | 38.1 | 11.4 | 6.1 | 9.5 | – | – | – | – | – | – | 34.9 |
| 14–15 Sep 2024 | Sankei/FNN | 1,012 | 30.8 | 15.3 | 7.3 | 6.3 | – | – | – | – | – | – | 40.3 |
| 14–15 Sep 2024 | go2senkyo/JX | N/A | 38.1 (53.9) | 11.4 (22.7) | 6.1 (7.1) | 9.5 (7.8) | – | – | – | – | – | – | 34.9 (8.5) |
| 14–15 Sep 2024 | Asahi | 1,070 | 29 | 15 | 6 | 5 | – | – | – | – | – | – | 45 |
| 13–15 Sep 2024 | Nikkei/TV Tokyo | 902 | 40 (58) | 18 | 9 | 6 | – | – | – | – | – | – | 27 |
| 13–15 Sep 2024 | Yomiuri/NNN | 1,040 | 32 | 14 | 8 | 9 | – | – | – | – | – | – | 37 |
| 7–8 Sep 2024 | JNN | 1,011 | 30.9 (53.3) | 11.3 (17.9) | 9.7 (8.1) | 7.1 (6.5) | – | – | – | – | – | – | 41 (14.2) |
| 6–9 Sep 2024 | Jiji Press | 1,170 | 27.5 (46.8) | 14.5 (23.4) | 8.5 (14.9) | 3 (4.3) | – | – | – | – | – | – | 46.5 (10.6) |
| 6–8 Sep 2024 | NHK | 1,220 | 35.3 | 14.4 | 9 | 5.6 | 4.9 | – | – | – | – | – | 30.7 |
| 7 Sep 2024 | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. | Nomination period closes. Official campaign period begins. |
| 31 Aug–1 Sep 2024 | go2senkyo | 1,000 | 15.4 | 9.2 | 3.8 | 0.9 | 1.6 | 1.1 | – | – | – | – | 68 |
| 24–25 Aug 2024 | SSRC | 1,752 | 21 | 13 | 5 | – | 2 | 1 | 1 | – | – | 1 | 55 |
| 24–25 Aug 2024 | ANN | 1,015 | 27 | 14 | 9 | – | 4 | 2 | – | 1 | – | – | 43 |
| 24–25 Aug 2024 | Mainichi | 950 | 27 (32) | 14 (37) | 7 (6) | – | 4 (6) | 2 | 2 | – | – | 19 | 24 |
| 24–25 Aug 2024 | Sankei/FNN | 1,017 | 20.1 (37.8) | 16.4 (36.1) | 6.6 (9.5) | – | 2.5 (6) | 2.1 (0.4) | 1.2 (0.6) | 1.2 (1.1) | – | – | 50 (8.5) |
| 23–25 Aug 2024 | Yomiuri/NNN | 1,056 | 25 | 15 | 8 | – | 3 | 3 | – | 3 | – | – | 43 |
| 17–18 Aug 2024 | go2senkyo/JX | 987 | 22.8 | 10.6 | 10.7 | – | 2.2 | – | – | 2.7 | – | 14.9 | 36 |
| 2–5 Aug 2024 | Jiji Press | 1,194 | 14.9 | 14.6 | 9.3 | – | – | – | – | – | – | – | 61.2 |
| 15–16 Jun 2024 | go2senkyo/JX | 984 | 19.2 | 8.4 | 11.4 | – | 2 | 1.3 | 0.5 | 1.5 | 1.3 | 11.1 | 43.3 |

## Results

Full results by round :
| Candidate | Candidate | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Second Round | Second Round |
| Candidate | Candidate | Diet members and candidates | Diet members and candidates | Diet members and candidates | Diet members and candidates | Local assembly members | Local assembly members | Local assembly members | Local assembly members | Party members | Party members | Party members | Party members | Total points | Total points | Diet members and candidates | Diet members and candidates | Prefectural chapters | Prefectural chapters | Total points | Total points |
| Candidate | Candidate | Votes cast | % | Points | % | Votes cast | % | Points | % | Votes cast | % | Points | % | Total votes | % | Votes cast | % | Votes cast | % | Total votes | % |
| | Yoshihiko Noda 当 | 83 | 36.62% | 128 | 34.78% | 348 | 31.21% | 58 | 31.35% | 24,087 | 43.59% | 81 | 43.79% | 267 | 36.18% | 132 | 57.39% | 28 | 59.57% | 232 | 56.31% |
| | Yukio Edano | 50 | 21.46% | 83 | 22.55% | 426 | 38.21% | 71 | 38.38% | 15,459 | 27.98% | 52 | 28.11% | 206 | 27.91% | 98 | 42.61% | 19 | 42.43% | 180 | 43.69% |
| | Kenta Izumi | 55 | 23.61% | 84 | 22.83% | 200 | 17.94% | 33 | 17.84% | 7,932 | 14.36% | 26 | 14.05% | 143 | 19.38% | Eliminated | Eliminated | Eliminated | Eliminated | Eliminated | Eliminated |
| | Harumi Yoshida | 45 | 19.31% | 73 | 19.84% | 141 | 12.64% | 23 | 12.43% | 7,776 | 14.07% | 26 | 14.05% | 122 | 16.53% | Eliminated | Eliminated | Eliminated | Eliminated | Eliminated | Eliminated |
| Total | Total | 233 | 100.00% | 368 | 100.00% | 1,115 | 100.00% | 185 | 100.00% | 55,254 | 100.00% | 185 | 100.00% | 738 | 100.00% | 230 | 100.00% | 47 | 100.00% | 412 | 100.00% |
| Valid votes | Valid votes | 233 | 100.00% | 368 | 100.00% | 1,115 | 100.00% | 185 | 100.00% | 55,254 | 99.91% | 185 | 100.00% | 738 | 100.00% | 230 | 100.00% | 47 | 100.00% | 412 | 100.00% |
| Invalid and blank votes | Invalid and blank votes | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 493 | 0.09% | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| Turnout | Turnout | 233 | 99.57% | 368 | 99.46% | 1,115 | 90.21% | 185 | 100.00% | 55,254 | 48.13% | 185 | 100.00% | 738 | 99.73% | 230 | 98.29% | 47 | 100.00% | 412 | 98.80% |
| Registered electors | Registered electors | 234 | 100.00% | 370 | 100.00% | 1,236 | 100.00% | 185 | 100.00% | 111,792 | 100.00% | 185 | 100.00% | 740 | 100.00% | 234 | 100.00% | 47 | 100.00% | 417 | 100.00% |
First round points (Diet members and candidates)
Noda
34.78%
Izumi
22.83%
Edano
22.55%
Yoshida
19.84% :
First round points (Local assembly members)
Edano
38.38%
Noda
31.35%
Izumi
17.84%
Yoshida
12.43% :
First round points (Party members)
Noda
43.79%
Edano
28.11%
Izumi
14.05%
Yoshida
14.05% :
First round points (Total)
Noda
36.18%
Edano
27.91%
Izumi
19.38%
Yoshida
16.53% :
Second round points (Diet members and candidates)
Noda
57.39%
Edano
42.61% :
Second round points (Prefectural chapters)
Noda
59.57%
Edano
42.43% :
Second round points (Total)
Noda
56.31%
Edano
43.69% :