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How did the Liberal-Democratic Party regain a two-thirds supermajority in the House of Representatives in 2026?

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The Liberal-Democratic Party (LDP) regained a two-thirds supermajority in the House of Representatives following a snap general election called by Prime Minister Sanae Takaichi on February 8, 2026.1

This victory marked a significant reversal of fortune for the party, which had previously suffered from prolonged instability and electoral losses under the leadership of Shigeru Ishiba, including the loss of its parliamentary majority in 2024. Takaichi, who was elected LDP president and prime minister in late 2025, secured this landslide result by campaigning on a policy platform that resonated with the public. Her agenda focused on:12

Economic Policy: Combating inflation through major fiscal spending, raising incomes, and providing tax incentives.21
Defense and Security: Expanding Japan's defense capacity and military buildup.21
National Interests: Adopting a hardline approach to China and implementing restrictive immigration policies.21

The election result, in which the LDP won 316 of the 465 seats, represented the first time since World War II that a single party controlled more than two-thirds of the lower house of the Diet.1