Morena holds a clear edge in trader sentiment for the Sinaloa Congress election winner due to its commanding position in the current 65th Legislature, where its parliamentary group and allies secured 31 votes to install the Mesa Directiva in late September 2026. Internal consensus within Morena’s bloc, combined with alliances involving PT and PVEM, has produced a working majority on key procedural votes, while recent affiliation data shows Morena far ahead of other parties in registered members. Opposition groups including PRI, PAN, and MC remain fragmented with limited legislative influence and lower polling traction in state surveys. High indecision in broader 2027 electoral head-to-heads and the absence of unifying opposition coalitions keep the race from separating further until candidate slates and formal campaigning intensify.