Brazil's October 4, 2026 first-round presidential vote features a polarized contest between incumbent Luiz Inácio Lula da Silva of the Workers' Party and Senator Flávio Bolsonaro of the Liberal Party. Final polls showed Lula leading Flávio by a few points on valid votes, though both candidates remained well below 50 percent, making a runoff on October 25 the near-certain outcome. Minor candidates such as Augusto Cury, Ronaldo Caiado, and Renan Santos registered only single-digit support and showed no path to the second round. Pre-election surveys consistently placed Lula and Flávio in a statistical tie for the runoff, with voter rejection rates near 45-47 percent for each and campaign focus on the economy, crime, corruption scandals, and institutional tensions. Jair Bolsonaro, imprisoned after a 2022 coup conviction, endorsed his son, reinforcing the two-candidate dynamic.