In 2020, the people who play the largest role in shaping health care policy may not be members of Congress, officials at CMS, or even presidential candidates -- they may be federal judges. Blockbuster cases on Medicaid, Medicare and the Affordable Care Act are percolating through the courts and could all receive momentous final decisions this year. These judicial rulings will determine the answers to some of the most contentious questions in health policy, such as whether states can require...