Brazil’s Senator Flavio Bolsonaro and President Luiz Inacio Lula da Silva traded barbs in their first face-to-face presidential debate on Sunday in a contentious back-and-forth just one week before the election’s run-off. Polls before the debate suggested Bolsonaro, the son of former far-right president Jair Bolsonaro, would enter the October 25 vote as the favourite after finishing nearly two points ahead of Lula in the election’s first round earlier this month. But surveys have also shown a...