WHAT DOES THE RULING MEAN TO ME?
The Supreme Court decision upholding President Barack Obama's health care law affects nearly every American. The law tells almost everyone they must have health coverage and guarantees it will be available to them even if they are already ill or need hugely expensive care. It helps the poor and many middle-class people afford coverage.
WHAT THE JUSTICES SAID
The high court upheld almost all of the law, including the most disputed part: the mandate that virtually all Americans have health insurance or pay a fine. The court said that fine is essentially a tax, and that's why the government has the power to impose it.
The ruling limited the law's plan to expand the Medicaid insurance program for the poor, a joint effort of the federal government and states. It says the U.S. government cannot withhold a state's entire Medicaid allotment if it doesn't participate in the expansion.
Chief Justice John Roberts sided with the court's four liberal justices — Stephen Breyer, Ruth Bader Ginsburg, Elena Kagan and Sonia Sotomayor — to form the 5-4 majority.
HUGE POLITICAL IMPACT
The court upheld Obama's signature legislative achievement. Final word from the court amplifies the most polarizing issue of his re-election campaign against Republican Mitt Romney.
GOP lawmakers and Romney have promised to repeal the law if they are in power after the November election.
The 2010 health care law will keep taking effect. It's expected to bring coverage to about 30 million uninsured people. Overall, more than 9 in 10 eligible Americans will be covered.
Some parts are already in effect: Young adults can stay on their parents' insurance up to age 26. Insurers can't deny coverage to children with health problems. Limits on how much policies will pay out to each person over a lifetime are eliminated. Hundreds of older people already are saving money through improved Medicare prescription benefits. And co-payments for preventive care for all ages have been eliminated.