If you're a supporter of so-called sanctuary cities, you were just handed a big defeat by the 5th Circuit Court of appeals. Last summer, when the Texas legislature passed Senate Bill 4 (SB-4) it was signed by Governor Greg Abbott and was immediately challenged by the ACLU, immigration activists, and Democrat-controlled cities. The law sought to increase, if not force, cooperation between local Texas law enforcement and state and federal immigration authorities. It also penalized non-compliance - essentially attacking the very foundation of "sanctuary cities."