Attendees at the launch event for President Luiz Inácio Lula da Silva’s presidential reelection campaign in São Paulo, Aug. 2, 2026. Lula, the leftist incumbent, and Flávio Bolsonaro, the right-wing challenger, face off in a race that could define the future of Latin America. (Victor Moriyama/The New York Times) By ANA IONOVA and ADAM B. ELLICK Brazil’s heated presidential election was forced into a runoff on Sunday, according to election officials, with the right-wing challenger leading over…
