Morena holds the leading trader-implied probability in the Oaxaca state congress race scheduled for June 6, 2027, reflecting its commanding position in the current LXVI Legislature, where it controls roughly two-thirds of seats alongside PVEM and PT allies. The electoral process formally opened in September 2026, with early focus on candidate lists, coalition negotiations, and alignment with concurrent federal contests. Opposition parties including PAN, PRI, and MC maintain lower probabilities amid Morena’s organizational reach and recent legislative actions such as the first state approval of the Guardia Nacional reform. Tightness among mid-tier contenders stems from the long timeline until nominations close and campaigns begin, potential shifts in alliances, and the mixed-member system that rewards both district wins and proportional representation. Key upcoming catalysts include party conventions, polling on local issues, and any federal policy developments that could alter turnout or voter sentiment before June 2027.