The fragmented field of over 15 registered candidates for Minas Gerais' two Senate seats has kept implied probabilities for first place tightly clustered near 50 percent for leading names, with Marília Campos (PT) at 48.5 percent and others such as Ana Luiza (UP) and Juiz Ramon Moreira trailing in the low-to-mid 30s or below. Recent party conventions and candidate launches through July and early August 2026 have solidified lineups without producing a dominant figure, as vote intentions remain split across PT, PL, PSD, PP, and smaller parties. Polling shows the top contender below 20 percent support, underscoring how turnout patterns, regional strongholds, and last-minute alliances could shift margins before the October vote. Traders price in this dispersion and the absence of decisive late momentum.