Breaking: How Have Party Support and Proportional Voting Preferences Shifted in the Final Phase of Diet Sessions? Reasons Behind Support or Opposition to Reducing Parliamentary Seats — July 2026 Phone and Internet Public Opinion Survey

Senkyo.com, in collaboration with JX News Agency, conducted a nationwide public opinion survey from July 11 (Saturday) to 12 (Sunday), 2026, using a hybrid methodology—simultaneously administering the same questionnaire via telephone and internet surveys to individuals aged 18 and over in Japan.

This report presents the results of our monthly surveys on party support rates, cabinet approval ratings, and voter intentions for the proportional representation block in the next House of Councillors election. Additionally, this month’s unique survey question focused on public opinion regarding the reduction of parliamentary seats, including reasons for support or opposition.

【Survey Overview】The survey was conducted on July 11 (Saturday) and 12 (Sunday), 2026 (Reiwa 8). The target population consisted of individuals aged 18 and over in Japan. Valid responses were obtained from 1,027 telephone interviews and 1,347 internet responses (both conducted jointly with JX News Agency). All figures are rounded to two decimal places.

Party Support Rates from the July 11–12, 2026 Survey

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

Proportional Representation Voting Intentions for the Next House of Councillors Election (July 2026 Survey)

The chart above shows the results of the question: "In the upcoming House of Councillors election, which party do you intend to vote for in the proportional representation block?"

Cabinet Support in the July 2026 Survey

The chart above shows the results of the question: "Do you support the Takagi Cabinet?"

Reduction of Parliamentary Seats

The chart above shows the results of the question: "The Liberal Democratic Party and Nippon Ishin no Kai are preparing a bill to reduce the number of seats in the House of Representatives by 45—limited to proportional representation seats—after one year if no agreement is reached through inter-party negotiations. Opposition parties oppose deliberation on the bill, claiming it favors the ruling coalition. Do you support or oppose this bill?"

For respondents who selected "Support" (strongly support or somewhat support) or "Oppose" (strongly oppose or somewhat oppose), we further asked for their reasons.

The chart above shows the results of the question: "What is your reason for supporting the proposal to reduce the number of proportional representation seats?"

The chart above shows the results of the question: "What is your reason for opposing the proposal to reduce the number of proportional representation seats?"

About Ichi-Ni Inc.

Ichi-Ni Inc. 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 related to elections and politics and ensuring information transparency, we support the creation of an environment that makes it easier for voters to participate in politics.

Additionally, we organize 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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