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How Did a Right-Wing Populist Party that Began on YouTube Win Big in Japan’s Recent Election?

JAPAN, JUL 20 – Sanseito’s 14-seat win marks a surge fueled by anti-immigration and nationalist sentiment, disrupting the ruling Liberal Democratic Party’s long-standing dominance, analysts say.

  • On July 20, in Japan's House of Councillors election, the relatively new Sanseito party won 14 seats.
  • Founded in 2020 amid the COVID-19 pandemic, Sanseito first gained traction with anti-vaccine and anti-globalist videos, reflecting voter discontent over immigration and economic stagnation.
  • Sohei Kamiya said the `Japanese First` slogan aimed to rebuild livelihoods by resisting globalism, winning support among young conservatives online and cutting into the LDP's base.
  • LDP's diminished majority in both houses underscores government turmoil, as the ruling coalition lost control after Sanseito's surge in support.
  • If it wins 50 to 60 Lower House seats, Sanseito could pursue coalition government formation, though it's too early to confirm whether it can sustain its momentum.
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42 Articles

With the Trump-Devise, the Sanseito party has increased strongly in the upper house elections. Party founder Kamiya bet against foreign tourists and wants Japanese women to think of children instead of careers.

·Frankfurt, Germany
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Lean Right

The right-wing populist wave, inspired by US President Donald Trump, has reached Japan. A party with a “Japan First” slogan saw a sharp increase in support in this weekend’s parliamentary elections. Dissatisfaction with the ruling LDP’s inability to tackle inflation has paved the way for the far right.

·Stockholm, Sweden
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Lean Left

The ex-YouTuber Sohei Kamiya admires the US president, sympathizes with the AfD and propagates »Japanese first«. His right-wing radical party triumphed in the election. A novelty in Tokyo.

·Germany
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The Populist Wave Hits Japan

·Chicago, United States
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The Japan Times broke the news in Japan on Sunday, July 20, 2025.
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