Alex spends his days explaining how health insurance works to people in Florida. People who are enrolled in private plans on the Affordable Care Act (ACA) marketplace call a 1-800 number, and he’s there to answer any questions they may have about premium tax credits, coinsurance, and things of that sort. He’s a licensed navigator for the Community Health Interventions & Sickle Cell Agency Inc., which receives a federal grant for its efforts. And this time last month, he was temporarily...