Polls ahead of Mexico’s 2027 Chamber of Deputies election show Morena maintaining a wide lead in voting intention, typically in the mid-to-high 30s percent, while the opposition remains fragmented. PAN has registered the most consistent edge among non-Morena parties in recent national surveys, placing it ahead of MC and PRI in most measurements and supporting trader consensus on its prospects for second place. MC and PRI trail in the low-to-mid teens or below, with limited signs of consolidation. PVEM and PT, aligned with the ruling coalition, register minimal standalone support, and Morena itself shows negligible odds of finishing second. The formal electoral process has begun, with candidate selection underway, but no major shifts have altered the relative positioning of the main opposition forces in the past month.