Brasilia, Aug 10 (Prensa Latina) Brazilian leader Luiz Inacio Lula da Silva maintains a lead over Senator Flávio Bolsonaro in the presidential race, according to a poll released by Nexus/BTG Pactual. The survey indicates that the incumbent—the Workers' Party candidate—reaches 40 percent of voting intentions in a prompted first-round scenario, five points ahead of the Liberal Party (PL) candidate.