TOKYO — Prime Minister Sanae Takaichi, elected in October as Japan’s first female prime minister, is reshaping the country’s political map as her Liberal Democratic Party governs with support from the Japan Innovation Party, known as Ishin. That deal is being tested after the ruling bloc postponed a promised House of Representatives seat-cut bill, a key Ishin demand, Dec. 30, 2025.
Takaichi took office Oct. 21 after the LDP turned to Ishin for votes when Komeito quit the coalition. Ishin has kept its leverage by refusing to send any minister to Takaichi’s cabinet.
Sanae Takaichi and the Ishin bargain
Reuters described the policy price Ishin attached: a roughly 10% cut in parliamentary seats, social security reform and expanded education benefits, plus proposals tied to tax relief for food and an “auxiliary capital” plan for Osaka in a disaster.
The seat-cut bill is now the most visible stress point. After opposition criticism and a stalled Diet schedule, Takaichi and Ishin leader Hirofumi Yoshimura agreed to push for passage during the ordinary session that begins in January, rather than extend the current session, Jiji Press reported.
The delay matters because Ishin’s decision to stay out of cabinet gives it freedom to support or oppose individual bills. In practice, each major vote can become a test of whether Sanae Takaichi can keep her government together.
Economic policy is another pressure line. Sanae Takaichi has pushed bigger budgets and tax cuts to blunt inflation, while Ishin sells itself as a “small government” reform party — a gap that will shape talks over stimulus and spending in 2026.
A historic first, with narrow room to maneuver
Japan’s parliament elected Sanae Takaichi prime minister Oct. 21, a milestone in a political system that had never produced a female leader. The Associated Press’ account of the vote described the new government as fragile, with Ishin’s support decisive after Komeito’s exit.
In her first major policy speech to the Diet, Sanae Takaichi pledged to press ahead while prioritizing inflation relief, strategic investment and national security. The harder question is whether she can deliver for Ishin without diluting her own agenda — and whether Ishin can keep selling cooperation with the LDP to voters who backed it as an anti-establishment force.
The longer arc behind the “overnight” win
In 2021, Reuters described Sanae Takaichi as a long-shot in the LDP leadership race, highlighting how rare it was for a woman to mount a serious bid inside a party dominated by rival factions.
The LDP’s weakened position also traces back to voter anger over money politics. A 2023 Reuters explainer on the party’s fundraising scandal captured how the controversy deepened mistrust and helped erode the coalition’s durability.
For now, Sanae Takaichi remains in office and Ishin is still onside. But with a key promise already slipping past a year-end deadline, Japan’s first female prime minister is learning that making history can be easier than holding a governing deal together.
