Sumio Mabuchi | |
|---|---|
馬淵 澄夫 | |
Official portrait, 2010 | |
| Minister of Land, Infrastructure, Transport and Tourism | |
| In office 17 September 2010 – 14 January 2011 | |
| Prime Minister | Naoto Kan |
| Preceded by | Seiji Maehara |
| Succeeded by | Akihiro Ohata |
| Member of theHouse of Representatives | |
| Assumed office 5 February 2019 | |
| Preceded by | Shinji Tarutoko |
| Constituency | Kinki PR (2019–2021) Nara 1st (2021–present) |
| In office 9 November 2003 – 28 September 2017 | |
| Preceded by | Masahiro Morioka |
| Succeeded by | Shigeki Kobayashi |
| Constituency | Nara 1st |
| Personal details | |
| Born | (1960-08-23)23 August 1960 (age 65) |
| Political party | CDP (since 2020) |
| Other political affiliations |
|
| Alma mater | Yokohama National University |
| Website | Official website |
Sumio Mabuchi (馬淵 澄夫,Mabuchi Sumio; born 23 August 1960) is a Japanese politician and a member of theHouse of Representatives in theDiet (national legislature).
A native ofNara, Mabuchi was born on 23 August 1960.[1] He holds a bachelor's degree in civil engineering, which he received fromYokohama National University in March 1984.[2]

Until 2000, Mabuchi worked in private sector and became director of the firm he was working for at age 32.[3] He was elected to the House of Representatives for the first time in 2003 after an unsuccessful run in 2000.[4] He was appointed senior vice minister of land, infrastructure, transport and tourism in September 2009.[2]
On 17 September 2010, Mabuchi was named as the newminister of land, infrastructure, transport and tourism in the reshuffledNaoto Kan cabinet.[5] Mabuchi left prime minister Kan's cabinet on 14 January 2011,[6] after the then-oppositionLiberal Democratic Party (LDP) passed a censure motion against him following the leaking ofJapanese Coast Guard footage of the2010 Senkaku boat collision incident. and ran unsuccessfully to replace him in the DPJ presidential election after Kan stepped down, losing toYoshihiko Noda, who replaced Kan as Prime Minister.[4] After theDemocratic Party of Japan suffered a major defeat to the LDP under Noda at2012 Japanese general election. Noda resigned to accept responsibility for the defeat.[7]
The resulting DPJ presidential election was held on 25 December 2012, which was contested by Mabuchi andBanri Kaieda. It was won by Kaieda with 90 votes to Mabuchi's 54 votes.[8][9]
Mabuchi continued to hold his seat until he was narrowly defeated in the2017 general election.[10] He had the highestratio of margin of defeat(sekihairitsu) (97.27%) among all defeated candidates in the election.[11] Mabuchi returned to the House in February 2019 after the resignation ofShinji Tarutoko, who was contesting theOsaka 12th district by-election. Being the candidate with the next largestsekihairitsu inKibō no Tō's 2017Kinki proportional representation list, Mabuchi was next in line to fill Tarutoko's PR seat. Mabuchi chose to sit as an independent.[12]
Mabuchi is a bodybuilder, and has been nicknamed "The Terminator".[4][13] On the other hand, he calls himself "lone gorilla".[3]

Mabuchi is married and has six children, five of whom are girls.[3] His spare-time activities include surfing and cooking.[3]
| Political offices | ||
|---|---|---|
| Preceded by | Minister of Land, Infrastructure, Transport and Tourism 2010–2011 | Succeeded by |
| Minister of State for Okinawa and Northern Territories Affairs 2010–2011 | Succeeded by | |
| Preceded by | Senior Vice Minister of Land, Infrastructure, Transport and Tourism 2009–2010 Served alongside:Kiyomi Tsujimoto→Taizō Mikazuki | Succeeded by |
| House of Representatives (Japan) | ||
| Preceded by | Representative forNara 1st district 2003–2017 | Succeeded by |
| Preceded by 28-member district (seat vacated byShinji Tarutoko) | Representative forKinki proportional representation block 2019– | Incumbent |
|}
Media related toSumio Mabuchi at Wikimedia Commons