Lula seeks a fourth non-consecutive term against Senator Flávio Bolsonaro, the leading right-wing challenger whose father Jair remains imprisoned after 2022-related convictions. Recent Datafolha, Quaest, and BTG/Nexus polls show Lula ahead in first-round intentions by several points but statistically tied with Flávio in runoff simulations, often within the margin of error, ahead of the October 4 vote and possible October 25 runoff. Trader positioning reflects this narrow contest amid ongoing debates, accusations of external interference, and voter concerns over economic conditions, betting regulations, and turnout including elevated null or blank ballots. Scheduled final debates and any late shifts in undecided voters could still influence the outcome before ballots close.