One of the changes being pushed by the liberals would lower the age of eligibility for Medicare to 55, from 65. Another would expand Medicaid to cover people with incomes up to 150 percent of the poverty level (up to $33,075 for a family of four).
A third liberal proposal would require insurers to spend a specified share of premiums — about 90 percent — on clinical services and activities that improve the quality of care.
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