Last month, a federal appeals court ruled in Halbig v. Burwell that consumers who purchase health plans through one of the Affordable Care Act’s federally run insurance marketplaces cannot receive premium subsidies under the law. (A separate federal appeals court reached the opposite conclusion in a similar case.) In a new blog post, Kevin Lucia and Justin Giovanelli of Georgetown University's Health Policy Institute outline options states might consider for establishing state-based marketplaces.