Flávio Bolsonaro maintains a commanding lead in Mato Grosso polling for the October 2026 first-round presidential vote, with recent surveys showing him at 41-47% against Lula’s 26-33% and single-digit support for alternatives such as Ronaldo Caiado or Augusto Cury. The state’s agribusiness economy and prior strong backing for Jair Bolsonaro create structural advantages for the PL candidate, reflected in trader consensus pricing the outcome near certainty. Remaining uncertainty stems from high undecided shares in some polls, potential shifts in turnout among rural voters, or late developments such as legal rulings on candidate eligibility or unexpected campaign events that could narrow margins before election day.