looming challenges to federalism

i’ll be interested to see how the conservative, pro-federalism, pro-states’ rights, GOP-run government (and the conservative intelligentsia which carries their theoretical water) handles some of the upcoming challenges to federalism:

  • medical marijuana laws
  • state & regional initiatives on global warming: for instance, California’s mandatory cap on greenhouse-gas emissions will have to be signed off on by the EPA before it goes into effect