Justice Roberts Took Middle Path in Obamacare Decisionbr National Constitution Center - National Constitution Centerbr From Citizens United to the Affordable Care Act to gay marriage, the Supreme Court under Chief Justice John Roberts has profoundly affected American life. Leading constitutional lawyer and scholar Laurence Tribe (who taught Roberts at Harvard) joins the National Constitution Center for what he describes as a "deeper understanding of the substance of the Court's work and how it is transforming our nation," drawing from his forthcoming book Uncertain Justice: The Roberts Court and the Constitution.