Polls for Mexico’s June 2027 Chamber of Deputies election show Morena maintaining a wide lead at 33–41 percent, leaving second place contested among a fragmented opposition. PAN holds the strongest position in recent surveys from firms including Enkoll, Buendía & Márquez, and LaEncuesta.mx, typically registering 11–17 percent support and outpacing PRI and MC. Traders appear to price PAN’s established national organization, historical role as the primary opposition force, and modest polling edge as decisive factors. PRI and MC trail closely in single digits to low teens, while PVEM and PT remain marginal. Discussions of local PAN-PRI alliances have reopened without producing a national pact, and MC continues to reject coalitions, preserving the current competitive dynamic among the three main opposition parties.