Morena holds the strongest position in the Sinaloa state congress election market at 67% implied probability, reflecting its dominant share of party affiliations, recent internal consolidation under coordinator Imelda Castro, and unanimous approval of alliances with the PT and PVEM ahead of the 2027 vote. These steps build on Morena’s prior legislative majority and national coordination for the 17 gubernatorial states renewing in 2027. Opposition parties such as the PRI (29%) and smaller groups trail amid efforts to form broader fronts, including PAN outreach, though fragmentation and lower affiliation numbers constrain their prospects. Ongoing security challenges in the state have prompted Morena legislators to highlight federal coordination and social programs, yet trader consensus continues to price the party’s organizational edge and coalition structure as decisive factors for the next legislature.