Health care was the big winner of the midterm elections: Idaho, Nebraska, and Utah easily passed ballot initiatives to expand Medicaid, and new governors in Kansas, Maine, and Wisconsin all support expansion. And Democrats took control of the House of Representatives with a strong platform of backing the Affordable Care Act and its key provisions.

While support for the law is strong across the country, the Trump administration continues its efforts to scale it back, and legal challenges remain. At the same time, leaders of both parties are exploring new efforts to lower the cost of care and prescription drugs. The Atlantic will explore the future of American health care, with a focus on the 116th Congress.