Read the entire ruling, including opinions by Chief Justice John Roberts, Justice Ruth Bader Ginsburg, and Justice Anthony Kennedy.
Here is the Court's ruling. You can read one plain-English paragraph explaining it here.
Read The Atlantic's full coverage of the Supreme Court's health-care decision.
This article available online at:
http://www.theatlantic.com/politics/archive/2012/06/the-supreme-courts-obamacare-decision-full-text/259102/