The U.S. Supreme Court has ruled to uphold President Obama's health law commonly known "Obamacare."
The question, whether the constitution allows the federal government to require everyone to buy health insurance.
The highest court ruled to uphold the law under the federal government's taxing authority.
Chief Justice Roberts and other justices decided the "penalty" for not buying health insurance is really a "tax."
The government argues without the mandate, without everyone in the system, popular parts of the law would go away: free preventive care, getting rid of coverage limits, and making sure the sickest people aren't denied.
Also at issue, whether Washington can force states to cover more poor people under Medicaid.
"We are confident that the law is constitutional," White House Press Secretary Jay Carney said.
The decision now a big blow to Mitt Romney and Republicans who've vowed to get rid of it.
"If the court does not strike down the entire law, the House will move to repeal what's left of it," House Speaker John Boehner, (R) Ohio, said.
- Tracie Potts, NBC News