Our legal system is composed of the law and precedent. When California issued CDL’s to illegals they set a precedent. A precedent can be used to modify the law. For example, a town enacts a law to prevent people from walking their ducks after sunset. (As I recall, that’s an actual law somewhere.) For decades people walk their ducks after sunset and do not get arrested or fined. Then, one night, someone gets arrested and charged. The lawyer for the duck walker would argue that the law was rendered null and void and his client is the subject of selective enforcement. (Not legal advice. Don’t walk your ducks based on a Free Republic post.)
I don’t think the truckers have a good case, but this is California. They’ll probably get a ten-billion-dollar settlement.
Why child rapists and lawyers are at the same level on the respect spectrum.