created a federal government of limited powers and assigned to this court of duty of enforcing those limits of the court does so today. they reigned in congress when it came to the commerce clause but said taxing power allows you to do what you have done in this healthcare law. shepard: the court ruled on massive expansion of medicaid. give us the details of that please. interesting. 26 states had sued. challenging the law as a whole. put millions of new people on to state medicaid rules under the it healthcare law. they couldn t afford it and law became a threat that the secretary of human services could scrap all of the existing money any didn t take the new people on to the roles that medicaid expansion can move forward. here is the caveat from the chief justice writing quote what congress is not free to do choose states not participate in new program by taking away their existing medicaid funding. some folks asked will the states say they won t participate since there is no thr