Recent polls and candidate registrations for Maranhão’s two Senate seats in October 2026 show a fragmented field with no dominant frontrunner for second place. Lahesio Bonfim’s June withdrawal from the gubernatorial race to enter the Senate contest has added a notable contender from the Novo party, while established figures such as Weverton Rocha, Eliziane Gama, Roseana Sarney, and André Fufuca maintain comparable support levels. The August registration deadline confirmed eleven candidates, and surveys indicate several others clustered within a few points, sustaining uncertainty over which names will secure the remaining vacancy after the leading vote-getter. This close distribution of voter preferences, combined with limited time before the October ballot, keeps implied probabilities for second place tightly bunched across the main contenders.