Signs point to a split Supreme Court. The nine high court justices heard two hours of arguments on Tuesday, focusing on the individual mandate - the requirement that all Americans purchase health insurance.
FOX News Radio's Jared Halpern heard it all from inside the courtroom:
Somewhat expected critiques of the individual mandate from the more conservative justices, Chief Justice John Roberts asking...
(Chief Justice Roberts) "Can the government require you to buy a cell phone, because that would facilitate responding when you need emergency services?"
But Justice Ruth Bader Ginsburg asked how the insurance requirement's all that different from Social Security.
(Justice Ginsburg) "If we don't have the healthy in it, there's not going to be the money to pay for the ones who become old or disabled."
Justice Anthony Kennedy, often a swing vote, could play that role again - at one point suggesting the health insurance mandate creates a heavy burden for the Administration to meet.
In Washington, Jared Halpern, FOX News Radio.
Outside the court, protesters gathered for another day of vocal support and opposition of the law.
FOX News Radio's Eben Brown spoke with some of the leaders of each side:
Here outside the court, healthcare reform advocate Ron Pollack of Families USA says we all need medical coverage.
(Pollack) "If we don't buy insurance ahead of time, we're likely to be unable to pay for the care that we receive."
And that's why he thinks the individual mandate should stand. But Texas Attorney General Gregg Abbott, one of the plaintiffs, says they had some concerns about how justices might rule.
(Abbott) "What kind of position Justice Kennedy and Scalia would adopt. And seeing their line of questioning made us very hopeful about what the outcome could be."
Both will be back for more tomorrow.
At the Supreme Court, Eben Brown, FOX News Radio.
LISTEN to some of Tuesday's proceedings, with Solicitor General Donald Verrilli being questioned by Justices Anthony Kennedy & Samuel Alito HERE: