Brazil votes Sunday in runoff between Lula and Bolsonaro's son

Fact-check index: 82/100 — The article's factual claims are closely and accurately sourced to France24, Sky News, ABC News, and align with BBC background, with one unsourced analytical claim at the end.

• Lula, 80, is seeking a fourth term — Matches BBC: 'Lula, 80, who is seeking a fourth term in office.'
• Flávio Bolsonaro is the son of jailed former president Jair Bolsonaro — Matches BBC: 'son of Brazil's imprisoned former president'; 'jailed' and 'imprisoned' are synonymous.
• Jair Bolsonaro is himself a Trump ally — Directly reflected in Sky News headline: 'son of Trump ally.'
• Neither man won a first-round majority — France24: 'neither candidate secured an absolute majority.'
• Bolsonaro beat Lula by more than 2.2 million votes in the first round — France24: 'Bolsonaro bested Lula by more than 2.2 million votes in the first round.'
• The runoff is being watched worldwide — Sky News: 'a run-off vote that is being closely watched around the world.'
• The result will help decide whether the US expands its influence in Latin America — France24: 'a contest that will determine whether the US will significantly expand its growing influence in Latin America.'
• ABC News notes a Bolsonaro win could pull Brazil closer to Trump — Matches ABC News headline: 'Bolsonaro heir could bring Brazil closer to Trump if elected president.'
• A friendlier Brasília would give Washington a foothold in the region as it reshapes tariffs and alliances elsewhere — This is an added editorial inference about tariffs/alliances not found or stated in any of the cited source material.