Recent national polling for Mexico’s June 2027 Chamber of Deputies election shows PAN holding a consistent, if narrow, lead among opposition parties with voter preferences typically in the 11–18% range, ahead of PRI (8–14%), MC (9–12%), and smaller shares for PVEM and PT. This positioning reflects the fragmented opposition landscape, where PAN, PRI, and MC are contesting separately without a national alliance, while Morena maintains a wide lead near 35–41%. Traders appear to view PAN’s modest but recurring edge in surveys from late summer and early fall 2026 as the clearest signal for second-place finish, with limited recent movement in the data to alter that consensus ahead of the formal campaign period.