Insurance advocates, hospital groups, unions, public health experts and others on Wednesday (Jan. 28) filed friend-of-court briefs defending premium tax credits in the federally-operated marketplace, joining consumer advocates and lawmakers who crafted versions of the Affordable Care Act in opposition to the plaintiffs in King v. Burwell ahead of oral arguments at the U.S. Supreme Court in March. Amicus briefs supporting the Obama administration were due this week, while those in favor of the plaintiffs were due Dec. 29...