After three days of intense oral arguments before the Supreme Court, the fate of the Affordable Care Act remains uncertain. Four of the court's Democratic-appointed judges are expected to support it, while at least three of the court's Republican-appointed judges are expected to reject it. That leaves just two votes in question: Justice Antonin Scalia and Justice Anthony Kennedy. In the biggest Supreme Court cases, Justice Anthony Kennedy, more often that not, is the key swing vote. The pointed questions he asked during arguments made him the hardest to read, and suggested that once again, his opinion may be the most crucial in this case, says Adam Liptak, Supreme Court Correspondent for The New York Times.