Again
The Affordable Care Act required states to set up health insurance exchanges when it was passed in 2010, but 34 states refused. The federal government set up exchanges on their behalf, which seemed like a reasonable expedient at the time. This morning, however, a DC Court of Appeals ruled 2 to 1 that the ACA prohibits the IRS from offering subsidies to people who bought their insurance on federal exchanges. That includes about 70% of the people getting subsidies, meaning that 4.7 million people just got some very bad news. For reference, it also means that 70% of the people who needed Obamacare the most live in states whose governors fought it the hardest.