WASHINGTON, D.C.: The Republican governor of Texas signed a controversial bill into law on Sunday banning so-called sanctuary cities and enabling police officers to ask the immigration status of anyone they detain. Greg Abbott took the unusual step of signing the legislation — which threatens sheriffs with arrest if they refuse to cooperate with federal authorities — during a live Facebook video broadcast. “Citizens expect law enforcement officers to enforce the law, and citizens deserve law breakers to face legal consequences,” he said before signing the law. “Texans expect us to keep them safe, and that is exactly what we are going to do.” The law prohibits cities from declaring themselves “sanctuary cities” — an unofficial designation — requiring local officials to carry out federal requests to hold criminal suspects for possible deportation. The bill prompted protests in Texas, including a sit-in in Abbott’s office. The police chiefs of Houston and Dallas — the state’s two largest cities — last week called the measure a “burden” on local law enforcement agencies. Other critics say the new law may be used to discriminate against Latinos and other minorities.