Kansas lawmakers in Topeka are not unique in their sudden enthusiasm for the 10th Amendment, which has inspired both chambers of the Legislature to adopt states' rights resolutions and consider a constitutional amendment to have Kansas opt out of health reform mandates. States' rights are all the rage, notes the New York Times, citing new laws in South Dakota and Wyoming invalidating federal regulation of some firearms, and Utah legislation declaring the state's authority over federal lands. Utah and Oklahoma also have debated opting out of federal health reform. Not all the efforts are born of conservative views, though. Rhode Island, Vermont and Wisconsin are considering bills that would push back at federal deployment of state National Guard troops. But the Constitution's Article 6 says "that federal law is supreme and that if there's a conflict, federal law prevails," Ruthann Robson, who teaches constitutional law at the City University of New York School of Law, told the Times. "It's pretty difficult to imagine a way in which a state could prevail on many of these."