Brazilian President Luiz Inacio Lula da Silva overtook right-wing Senator Flavio Bolsonaro in a runoff, with half of votes counted and ballots from left-leaning states in Mr Lula's northeastern stronghold starting to pour in. By Ricardo Brito, Luciana Magalhaes and Pedro Fonseca BRASILIA/SAO PAULO, Oct 25 (Reuters) - Brazilian President Luiz Inacio Lula da Silva overtook right-wing Senator Flavio Bolsonaro in Sunday's.