In about a month, the U.S. Supreme Court will decide whether or not its legal to use subsidies to purchase health insurance under the Affordable Care Act in states using the federally facilitated marketplace. Since oral arguments were heard March 4 in King v. Burwell, theres been much speculation on the outcome and what will happen should the court rule against tax credits.
Also see: As SCOTUS hears King v. Burwell, predictions on its outcome