**Renan Santos, the Missão party candidate in Brazil’s 2026 presidential race, faces a high implied probability of participating in at least one debate before the October 4 first round.** A late-August Band debate already occurred with Santos alongside Ronaldo Caiado and Augusto Cury (major candidates Lula and Flávio Bolsonaro were absent). On August 31, TSE Minister Dias Toffoli imposed a temporary suspension on debate participation, digital propaganda on late-registered profiles, and electoral fund access due to filing irregularities. Toffoli quickly reconsidered on September 1, lifting the core restrictions on debates, registered-profile advertising, and fund disbursements while requiring further clarification within 72 hours. Upcoming scheduled events include a September 14 multi-outlet pool debate, a September 27 Record debate, and an October 1 Globo debate. Santos has signaled intent to engage and faces no remaining formal barriers, supporting trader consensus reflected in the 89% Yes price. Political outcomes remain subject to rapid procedural shifts.