The battle for state rights under the Obama administration was fought mainly in the courts. This was particularly evident in the opposition carried out against the Affordable Care Act (ACA), which was challenged in the Supreme Court. The constitutional arguments used by the petitioners typified the usual positions of conservatives on major federal social programs; they challenged the power of Congress to legislate on healthcare and impose mandates. What is less known, however, is that the lawsuit was preceded by numerous legislative measures passed by state legislatures to avoid the implementation of the ACA within their borders. State legislatures passed so called “anti-commandeering resolutions” in the hope of influencing upcoming lit...