The U.S. Supreme Court has wrapped up two hours of oral arguments on the constitutionality of a key provision of the Patient Protection and Affordable Care Act, the mandate that most Americans must purchase health insurance or pay a penalty. Early analysis is that it was a hard day for Obama Administration Solicitor General Donald Verrilli and proponents of the health care reform law, as conservative justices expressed skepticism about legal justification for the law. Predicting the outcome of cases based on oral arguments, however, is usually a risky game. Today is just the beginning of a long internal debate within the Court that will likely last until June, when a decision is expected before the end of this term.

The court has posted a typed transcript and an audio recording of today’s session.