In June, the Trump administration instituted new rules that would allow small businesses and individuals to access health insurance through what the president called “ association health plans.” This would permit certain businesses and the self-employed to band together, even across state lines, to provide coverage for members outside of Obamacare’s strict rules. It turns out association health plans have quickly become a solution to many Americans’ coverage problems, are more affordable than Obamacare, and are helping many get the care they need. “It's time to acknowledge that critics may have misjudged one of the Trump administration's signature health-care policies...