AtlasIntel / Bloomberg — President - Runoff

Original population description: Eligible Brazilian voters aged 16+ (national); source-reported valid-vote share. SOURCE-REPORTED VALID VOTE SHARES: Flávio Bolsonaro 50.8%; Lula 49.2%. Do not calculate valid-vote shares from rounded total-vote figures. Source-reported TOTAL vote intention: Flávio 49.9%; Lula 48.4%; blank/null/undecided combined 1.7% (not entered as candidate rows). AtlasIntel/Bloomberg national survey using Atlas RDR digital recruitment, n=4,990, fieldwork 18-23 Oct 2026; reported margin of error +/-1.0 pp at 95% confidence. Published 24 Oct 2026 at 19:30 Brasilia time per Exame. TSE BR-06380/2026. Compare registry ID and poll key with Election Pulse duplicate preview before import; select Brazil presidential runoff and verify both candidate mappings. AtlasIntel prior wave reportedly Flávio 51.1%, Lula 48.9% valid votes; keep waves separate.