In the majority opinion, Chief Justice John G. Roberts Jr. wrote that the 2010 health-care statute's “individual mandate” provision, which requires that Americans obtain health insurance by 2014 or pay a tax penalty, is constitutional. The mandate was the centerpiece of the law, and the court’s decision on that issue upholds most of the statute.
The court did reject one provision, the law’s Medicaid expansion, which would deny federal Medicaid funds to states that choose not to expand their coverage to all individuals under the age of 65 who live below the poverty line.