supreme court, could impact at least five million americans. and if the supreme court rules in favor of the plaintiffs it could completely derail the affordable care act. and here's why -- it hinges on what many call the lynch pin of obama care. subsidy force american who is can't afford health insurance on their own. and states with federally-run exchange 34 states the. the plaintiffs in this case are focused on four words in the affordable care act. these four words, established by the state. the plaintiffs argue that those americans and states without state-run exchange don't get, don't qualify for subsidies. that the law is clear, it's only for those states with state-run exchange not the 34 states with federally-run exchange. and the plaintiffs arguing the government tried to rewrite the law after congress passed it once it realized that 34 states weren't going to have the state-run exchange. the government we're expecting to argue today is you can't just look at those four words in