The Commerce Department’s proposed ban on “connected vehicles” that contain software and hardware from China and Russia could violate the U.S.-Mexico-Canada Agreement as well as World Trade Organization rules, the Mexican government has claimed. Citing national security risks related to the collection of sensitive data, Commerce in September proposed a ban that would block autos with Chinese or Russian hardware starting with model year 2027. Vehicles with Chinese or Russian software would be blocked starting with model year 2030 vehicles...