Morena holds a narrow lead in trader consensus for the Zacatecas state congress election due to its current plurality of seats in the LXV Legislature and alignment with the federal ruling coalition. Recent municipal leadership defections from Morena and PVEM to PAN on October 10, along with internal Morena disputes over 2027 gubernatorial coordination, have sustained uncertainty. Opposition parties including PRI, PAN, and MC retain district strength and proportional representation pathways under the mixed electoral system, while security concerns and voter fragmentation in battleground areas limit any single party's dominance ahead of the concurrent 2027 contests.