Recent national polling for Mexico’s June 2027 Chamber of Deputies election consistently places Morena first with 33–41 percent support, while PAN leads the fragmented opposition at 11–18 percent, ahead of PRI (8–14 percent) and MC (9–12 percent). PAN’s decision to contest the election independently after ending its prior alliance with PRI has reinforced its standing as the principal challenger. Multiple surveys from late August through late September 2026 show PAN maintaining a narrow but steady edge over PRI and MC, reflecting the opposition’s divided vote and limited recent growth. PVEM and PT remain low-single-digit forces tied to the ruling bloc. Trader consensus on PAN for second place aligns with these repeated polling patterns ahead of the June vote.