Both sides have had the opportunity to present their case. Now, after three days of testimony, the fate of the healthcare law rests in the hands of the nine Supreme Court justices. And Wednesday's final sessions opened up plenty of questions about the future of the law.
FOX News Radio's Jared Halpern has covered all three days of testimony:
Two very different aspects of the Affordable Care Act argued today. First, how important the requirement to buy health insurance is to the rest of the massive legislation.
(Justice Ginsburg) "It's a choice between a wrecking operation, which is what you are requesting, or a salvage job."
And Justice Ruth Bader Ginsburg - and her colleagues - struggling with what provisions could remain if the individual mandate is struck down.
A far more defined split in the day's second argument focused on Medicaid expansion, and whether or not giving states a choice between following new guidelines or losing federal funding amounts to coercion.
In Washington, Jared Halpern, FOX News Radio.
Meanwhile, groups gathered outside the court once again, in another day of peaceful protests and support rallies.
FOX News Radio's Eben Brown has followed that from the Supreme Court:
Here in front of the Supreme Court, the Tea Party prays.
(Tea Party prayer) "Our Father, who art in heaven, hallowed be thy name."
And for some folks, these Supreme Court arguments are about more than just legislation.
(Tea Party prayer) "Lord, there are so many things our country has gone astray, and we need to come back to you. We need a new revival."
But those wanting the law upheld don't feel any ill will, they just disagree.
(Supporter) "Ultimately, what I think we wanna try to do is use this as a teachable moment, to let the American people know what's at stake, what they can lose."
At the Supreme Court, Eben Brown, FOX News Radio.
LISTEN to some of Wednesday's proceedings HERE: