Flavio Bolsonaro and Lula are equally matched in a Datafolha poll ahead of Brazil's runoff election. The final debate focused on living costs and corruption, with both candidates targeting undecided voters. Taylor Swift's influence is also drawing attention, with pop fans potentially aiding Lula's campaign. Voting security is a concern as Brazil's rapid count precedes the US midterms. Trump's presence is also influencing the Brazilian election.