Morena holds a clear lead in the Sinaloa Congress election market at 59.5 percent implied probability, reflecting its dominant position in the current LXV Legislature with 24 of 40 seats and its strong organizational edge ahead of the 2027 contest. Recent congressional actions, including the October 2026 selection of interim Governor Graciela Domínguez Nava with 31 votes in favor, underscore the party's control over legislative outcomes and alliances with PT and PVEM. Polling trends for the broader 2027 cycle show Morena, PT, and PVEM combined near 43 percent support, ahead of PRI and PAN, while party affiliation data places Morena far in front. Security challenges from cartel violence and opposition fragmentation have not yet shifted trader consensus away from the incumbent majority bloc, though upcoming candidate definitions and any shifts in voter turnout could narrow the gap.