“On March 25, a three-judge panel of the D.C. Circuit heard oral arguments in Halbig v. Sebelius, one of four lawsuits challenging the legality of implementing certain ACA provisions in the 34 states with federally established health insurance Exchanges. On May 14, a panel of the Fourth Circuit heard arguments in a related case, King v. Sebelius. Rulings in these cases could come at any time.”