Presidential candidates traded accusations over political corruption on Friday night in a last ditch attempt to sway undecided voters before Sunday's election runoff in Brazil's closest race in decades. In the final television debate of a bitter campaign, leftist President Dilma Rousseff and pro-business opposition candidate Aecio Neves sparred over who was best suited to restore growth to a stagnant economy, fight inflation, bring down rents and deal with open sewers in Brazilian cities.