One thing the ACA didn't change was Medicaid's estate recovery rule. Under a law enacted in 1993, states are required to seek recovery from the estates of deceased enrollees for the costs of long-term care, such as nursing-home care. The recovery rule applied to those who received that care when they were 55 and older, or who were permanently institutionalized at any age. Medicaid eligibility for the expanded programs is based on income alone, which means there might be some new members with low incomes but sizable illiquid estates, such as homes worth hundreds of thousands of dollars. The prospect...