What issue is your article discussing and why is it an example of federalism?

For your midterm paper, you are to find an article from a reputable news source that discusses an issue related to federalism. You will then answer the following questions: What issue is your article discussing and why is it an example of federalism? What problems have arisen, or could potentially arise, as a result of the state-national policy interaction discussed in your article? In your opinion, is United States federalism an efficient method of governance, or does it create more problems than it solves? Why?