Morena holds a commanding position in trader assessments for the 2027 Mexican Chamber of Deputies election due to its sustained lead in national voting intention polls, recently registering 39-41% support compared to single-digit or low-teen figures for PAN, PRI, and MC. Recent September surveys confirm this gap has held steady amid the start of the formal electoral process, bolstered by Morena’s organizational infrastructure, alliances with PT and PVEM, and unified leadership under President Claudia Sheinbaum. Opposition parties remain fragmented without a broad coalition, limiting their ability to consolidate votes for the most seats. Internal candidate selection processes underway in October further reinforce Morena’s structural advantages ahead of the June 2027 vote.