The court ruled the law as a whole made subsidies available for people in all 50 states, not just those who bought insurance through a state exchange.
The high court case was the second major challenge to the healthcare law- often known as Obamacare - since its passage.
The decision is major victory for the Obama administration.
"Congress passed the Affordable Care act to improve health insurance markets, not to destroy them," Chief Justice John Roberts wrote in the opinion.
If the law was overturned, 6.4 million Americans would have been at risk of losing aid.
The 2010 law, often known as Obamacare, set up a federally run insurance exchange where Americans who were not covered by employers or other governmental could buy health insurance. » | Thursday, June 25, 2015
