Lula's lead over Flavio Bolsonaro narrows ahead of Brazil election, Datafolha poll shows

SAO PAULO, Sept 3 - The lead of Brazilian President Luiz Inacio Lula da Silva over Senator Flavio Bolsonaro ahead of the October election has narrowed, a Datafolha poll showed on Thursday, following a similar trend seen in other polls.Lula is seen with 46% of the vote in a potential runoff, against 44% for the senator, a son of former President Jair Bolsonaro. In a mid-August poll, Lula had 47% of the vote, and Bolsonaro had 43%.• Polls from Quaest and AtlasIntel/Bloomberg had also shown Lula's lead narrowing in the past few days• In a first-round scenario, Lula would lead with 38% of the vote, followed by Bolsonaro (33%), Augusto Cury (8%), and Ronaldo Caiado (4%)• In August, Lula had 39%, and Flavio Bolsonaro, 33%• If no candidate wins more than 50% of valid votes in the first round, the two frontrunners advance to a runoff, which has happened in every presidential election since 2002• Datafolha surveyed 2,002 people between September 1-2, and has a margin of error of two percentage points REUTERS