Democrats and Republicans are sitting on the edge of their seats, waiting to see what the Supreme Court will decide in King v. Burwell, the looming decision about the Affordable Care Act, or Obamacare, as it has come to be known.

If the Supreme Court agrees with the challenge, an estimated 13 million people will lose their federal health insurance subsidies. The plaintiffs have argued that based on the literal reading of the legislation, the government is only supposed to provide citizens with subsidies in states that set up their own health care exchanges (a total of 16 states). The sentence in the law upon which their claim is based, The New York Times reported, was based on a sloppy error made during the drafting process. Regardless, the plaintiffs argue that in states where residents rely on federal subsidies (34 altogether), the law does not provide for subsidies.

If the Supreme Court ruling takes away their subsidies, a substantial number of the citizens in those states will not be able to pay for their health care. Many younger and healthier Americans will take the risk and decide that they won’t purchase insurance, a trend which would send prices skyrocketing. An ever-growing cycle would be devastating.