In his address last week before the legislature, Governor Perry called out "sanctuary cities" and stated that he will work to abolish them. In essence, he is suggesting the local law enforcement officers enforce national immigration laws, in addition to local and state legislation. This obviously adds to their workload, and in a budget cutting environment, this may prove unpopular.
An intrepid student hunted down this LA Times piece detailing the problems associated with the proposal. This is a perfect topic for 2301s upcoming discussion of federalism.
Thanks CR!