RIO DE JANEIRO—Brazil’s top two presidential candidates will face each other in a runoff vote after neither got enough support to win outright Sunday in an election to decide if the country returns a leftist to the helm of the world’s fourth-largest democracy or keeps the conservative incumbent in office.
With 99.5 percent of the votes tallied on Sunday’s election, former President Luiz Inácio Lula da Silva had 48.3 percent support and President Jair Bolsonaro had 43.3 percent support. Nine other candidates were also competing, but their support pales to that for Bolsonaro and da Silva, who is commonly known as Lula….