The head of a Japanese IT firm has said that he created videos criticising rivals of Prime Minister Sanae Takaichi in last year’s ruling Liberal Democratic Party (LDP) presidential race, after being asked by one of her aides to help her win the election.Ken Matsui, 33, said in a recent online interview that he was consulted by a secretary of Takaichi on how to “reverse” the lead of Shinjiro Koizumi, then a strong contender to win the LDP presidential election in October.“I proposed that negative videos would be effective,” he said.
SRCSouth China Morning Post
LANGEN
LEANCenter-Right
WORDS91
ENT6
MON · 2026-06-08 · 04:38 GMTBRIEF NSR-2026-0608-82589
NSR-2026-0608-82589News Report·EN·Political Strategy
Japanese IT head says he made AI videos to smear Takaichi’s rivals during party poll
Ken Matsui, the head of a Japanese IT firm, has stated that he created videos criticizing rivals of Sanae Takaichi during last year's Liberal Democratic Party (LDP) presidential race. Matsui said he was approached by a secretary of Takaichi, who sought his assistance in helping Takaichi win the election.
KyodoSouth China Morning PostFiled 2026-06-08 · 04:38 GMTLean · Center-RightRead · 1 min
South China Morning PostFIG 01
Reading time
1min
Word count
91words
Sources cited
1cited
Entities identified
6entities
Quality score
100%
§ 01
Briefing Summary
AI-generatedNEWSAR · AI
Ken Matsui, the head of a Japanese IT firm, has stated that he created videos criticizing rivals of Sanae Takaichi during last year's Liberal Democratic Party (LDP) presidential race. Matsui said he was approached by a secretary of Takaichi, who sought his assistance in helping Takaichi win the election. Specifically, the secretary consulted Matsui on strategies to counter the lead of Shinjiro Koizumi, a strong contender at the time. Matsui proposed that negative videos would be an effective tactic. This information was revealed in a recent online interview.
Confidence 0.85Sources 1Claims 4Entities 6
§ 02
Article analysis
Model · rule-basedFraming
Political Strategy
Technology
Tone
Measured
AI-assessed
CalmNeutralAlarmist
Factuality
0.70 / 1.00
Factual
LowHigh
Sources cited
1
Limited
FewMany
§ 03
Key claims
4 extracted01
The videos were created to smear Takaichi's rivals.
factualKen Matsui
Confidence
1.00
02
Matsui proposed that negative videos would be effective to "reverse" the lead of Shinjiro Koizumi.
quoteKen Matsui
Confidence
1.00
03
Matsui was asked by a secretary of Takaichi to help her win the election.
factualKen Matsui
Confidence
1.00
04
Ken Matsui, head of a Japanese IT firm, created videos criticizing rivals of Sanae Takaichi during the LDP presidential race.
factualKen Matsui
Confidence
1.00
§ 04
Full report
1 min read · 91 words§ 05
Entities
6 identifiedKey playerOppositionContextPositiveNeutralNegative
People3
Organizations1
Locations1
§ 06
Keywords & salience
8 termsai videos
1.00
political smear campaign
0.90
ldp presidential race
0.80
sanae takaichi
0.70
election interference
0.70
it firm head
0.60
negative videos
0.50
shinjiro koizumi
0.40
§ 07
Topic connections
Interactive graph Network visualization showing 51 related topics
View Full Graph Person Organization Location Event|Click node to navigate|Edge numbers = shared articles