The Republican plan would alter both of those programs, changing the winners and losers. It would substantially cut funding for states in providing free insurance to low-income adults through Medicaid. And it would change how tax credits are distributed by giving all Americans not covered through work a flat credit by age, regardless of income.

That means that the biggest financial benefits would go to older Americans, like, say, Secretary of State Rex Tillerson. If he didn’t have a job in the Trump cabinet and access to government coverage, a 64-year-old multimillionaire like him would get the same amount of financial assistance as someone his age, living in poverty, and he would get substantially more money than a poor, young person.

The idea of matching tax credits to age makes some sense. Older people tend to have higher medical bills, and insurers, even under Affordable Care Act rules, charge them substantially higher prices. The new plan would also simplify the current system, which requires verifying every applicant’s income and then giving just the right amount of financial assistance. It would also eliminate incentives for low-income people to avoid earning more (higher earners can face a reduction in benefits).

But the current system is set up to ensure that low and middle-income Americans can afford the cost of their premiums. The Republican plan would not do that, and would result in many more low-income people losing out on coverage if they couldn’t find the money to pay the gap between their fixed tax credit and the cost of a health plan.