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 far-right incumbent in office. With 99.5% of he votes tallied on Sunday's election, former President Luiz Inácio Lula da Silva had 48.3% support and President Jair Bolsonaro had 43.3% support. Nine other candidates were also competing, but their support pales to that for Bolsonaro and da Silva. The tightness of the result came as a surprise, since pre-election polls had given da Silva a commanding lead. The last Datafolha survey published Saturday found a 50% to 36% advantage for da Silva. It interviewed 12,800 people, with a margin of error of 2 percentage points. "This tight difference between Lula and Bolsonaro wasn't predicted," said Nara Pavão, who teaches political science at the Federal University of Pernambuco. Carlos Melo,