Recent polling in Maranhão's Senate race shows Roseana Sarney (MDB) consistently leading for first place with totals around 17-22% in September surveys, ahead of André Fufuca (PP) and Lahesio Bonfim (NOVO), while Weverton Rocha (PDT) and Eliziane Gama (PT) remain competitive for the second seat. The dual-vote system, high undecided rates exceeding 20-30% in some surveys, and regional party bases sustain a tight contest among the top contenders. Official candidacies were formalized in July and August, with limited major shifts since then beyond incremental polling movements. Traders assign Sarney the clearest edge for first amid these dynamics, while the broader field reflects uncertainty over vote combinations and turnout patterns heading into the October 4 election.