Early Thursday morning, the Supreme Court upheld the individual requirement at the heart of President Obama’s healthcare overhaul. The law had been challenged based off a provision of the law that required all Americans must buy health insurance. The individual health insurance mandate is constitutional, the Supreme Court ruled Thursday, upholding the central provision of President Barack Obama’s signature Affordable Care Act. The 5-4 majority opinion, written by Chief Justice John Roberts, upheld the mandate as a tax, although concluded it was not valid as an exercise of Congress’ commerce clause power. Justices Ruth Bader Ginsburg, Stephen Breyer, Sonia Sotomayor and Elena Kagan joined in the majority. Justices Samuel Alito, Anthony Kennedy, Antonin Scalia and Clarence Thomas dissented.