Breaking: Latest Party Support Rates, Cabinet Approval Trends, and Future of the Centrist Coalition — June 2026 Hybrid Phone & Internet Public Opinion Survey

Senkyo.com, in collaboration with JX News Agency, conducted a nationwide hybrid survey (simultaneous phone and internet surveys using identical questions) targeting individuals aged 18 and over in Japan on June 13 (Sat) and 14 (Sun), 2026.

This report presents the results of our monthly tracking on party support rates, cabinet approval ratings, voting intentions for the next House of Councillors proportional representation election, and this month’s special question: "The Future of the Centrist Reform Alliance."

Survey Overview

The survey was conducted on June 13 and 14, 2026 (Reiwa 8). The target population was individuals aged 18 and over in Japan. Valid responses were collected from 1,064 participants via telephone interviews and 1,385 via internet surveys (both conducted jointly with JX News Agency). All figures are rounded to the nearest second decimal place.

Party Support Rate — June 13–14, 2026

The chart above shows responses to the question: "Which political party do you normally support?"

Voting Intention for Next House of Councillors Proportional Representation Election — June 2026

The chart above shows responses to: "For the next House of Councillors election, which party do you intend to vote for in the proportional representation block?"

Cabinet Approval Rate — June 2026

The chart above shows responses to: "Do you support the Takagi Cabinet?"

The Future of the Centrist Reform Alliance

The chart above shows responses to: "The Constitutional Democratic Party and Komeito formed the Centrist Reform Alliance in January this year and contested the House of Representatives election together. However, in the House of Councillors, they are operating separately. What do you think the three parties — Centrist, CDP, and Komeito — should do going forward? Please choose from the following seven options."

The options were: - CDP and Komeito merge into Centrist - CDP, Komeito, and Centrist form a new party together - Centrist and Komeito merge first, CDP remains independent - Centrist splits, returning CDP and Komeito to their original forms - Continue the current situation with the three parties operating independently - Other - Don’t know / No answer

About Ichi-Ni Corporation

Ichi-Ni Corporation operates "Senkyo.com," Japan’s largest political and election portal site, used by approximately 41 million users. The company databases and manages election information and candidate data nationwide. By building platforms around elections and politics and ensuring information transparency, we support the creation of an environment where voters can more easily participate in politics.

Additionally, we conduct study sessions for local assembly members and foster diverse networks through collaboration among government, industry, and academia, promoting innovation through open discussions.

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