Overview
- The Oct. 4 first round drew just over 125.2 million voters and generated rapid, municipality-level results published from Tribunal Superior Eleitoral (TSE) data.
- Agência Brasil compiled state-by-state lists showing many governors elected or moving to runoffs and naming the most-voted senators, including Rui Costa and Jaques Wagner in Bahia.
- The TSE confirmed some outcomes as mathematically decided, for example Mauro Mendes and Zé Medeiros in Mato Grosso with roughly 95.75% of ballots counted.
- Local automated reports fed by TSE data and supervised by journalists exposed sharp geographic splits in the presidential vote with Flavio Bolsonaro leading in many municipalities and Lula dominating others.
- Late pre-election polls such as a Quaest survey in Bahia showed Rui Costa leading in the two-seat Senate race and offer a benchmark for comparing the official tallies as the court completes validation.