Brazil's Lula regains narrow edge over Bolsonaro in BTG/Nexus poll

SAO PAULO, Sept 14 - Brazilian President Luiz Inacio Lula da Silva regained a slim lead over right-wing Senator Flavio Bolsonaro in a simulated runoff for next month's election, a BTG Pactual/Nexus poll showed on Monday, though the race remained statistically tied.