Datafolha Poll Shows Tight Lula–Flávio Bolsonaro 2026 Runoff

A Datafolha survey released September 26, 2026 shows a competitive presidential runoff scenario across key demographic groups, with incumbent President Lula and Flávio Bolsonaro — son of former president Jair Bolsonaro — running closely in simulated second-round matchups. The polling underscores the fragmentation of Brazilian electoral politics ahead of the October 2026 general election.