Sanae Takaichi’s commanding position as Japan’s prime minister stems from the Liberal Democratic Party’s landslide victory in the February 2026 snap election, which delivered a two-thirds supermajority in the lower house and the largest postwar seat total. This outcome followed her October 2025 selection as the first female prime minister and provided a clear parliamentary mandate for her economic, security, and constitutional priorities. Recent official engagements through April and May 2026, including diplomatic meetings and domestic policy events, reflect sustained government stability with no reported challenges to her leadership. Traders therefore assign an 84.5% probability that she will remain in office through the end of 2026, consistent with the typical four-year term cycle and historical patterns of LDP dominance after strong electoral results.