Overview

• Mario Alberto López Hernández, a PVEM federal deputy and former Matamoros mayor, underwent roughly 12 to 15 hours of questioning at the Brownsville–Matamoros crossing before returning to Mexico.
• Multiple outlets earlier reported that U.S. authorities revoked his visa, and in a later interview he confirmed the visa was taken but said it was due to physical damage to the document and that he was told to renew it.
• López and his congressional office publicly denied that he was detained or under investigation, calling media accounts false despite photos and witness reports showing him inside CBP facilities.
• U.S. agencies have not issued a public explanation for the extended review or confirmed the basis for any visa action.
• The incident involves a high-profile local figure whose past municipal administrations drew state audit observations, adding political context to an episode that has produced competing narratives and unanswered procedural questions.