at the overall purpose of the act. and the sense i got today was that the solicitor general representing the obama administration was pretty forceful in making the case that the overall purpose of the act was to say to the states, look, you can make these exchanges if you want, and if you don't want to, we'll do it instead. >> right. and a lot of people quoting scalia today. nina, thank you very much. >> thank you. there's a new metric for deciding who among the possible republican 2016 contenders is the strongest on foreign relations and that is how hard they clap.