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Brazil’s Lula would beat Bolsonaro by 1 point in runoff, suggests BTG/Nexus poll

By Thomson Reuters Sep 21, 2026 | 5:17 AM

SAO PAULO, Sept 21 (Reuters) – Brazilian President Luiz Inacio Lula da Silva and Senator Flavio Bolsonaro remain statistically ​tied in a simulated runoff ahead ‌of next month’s election, a BTG Pactual/Nexus poll showed on Monday, with the leftist incumbent holding a narrow lead within the survey’s ‌margin ​of error.

• If there ⁠was a runoff, Lula ⁠would receive 46% of voter support, compared with 45% for the eldest son of former President Jair Bolsonaro, the ​poll said.

• A September 14 survey had Lula leading Bolsonaro by 47% ⁠to 46%.

• In a ⁠first-round scenario, Lula would lead ​with 40% of the votes, followed by Bolsonaro (37%), ​Augusto Cury (6%), Ronaldo Caiado (5%) and Renan ‌Santos (3%).

• The previous first-round survey had Lula at 42%, Bolsonaro at 37% and Cury at 6%.

• If no candidate wins ⁠more than 50% of valid votes in the October 4 first round, the two frontrunners ⁠advance to ‌a runoff on October 25.

• ⁠Nexus surveyed 2,006 people from ​September ‌18 to 20. The poll ​has a ⁠margin of error of 2 percentage points.

(Reporting by Rodrigo Viga Gaier in Rio de Janeiro, Michael Susin in Barcelona and Gabriel Araujo in Sao Paulo; Editing by ​Isabel Teles)