Clinton’s proposals are aimed at addressing many of the most common gripes about Obamacare: That insurance is still too expensive or that insurers are abandoning the Obamacare marketplaces and leaving people in some areas with few options.

First, Clinton would add a tax credit of up to $2,500 for individuals whose out-of-pocket medical spending exceeds 5 percent of their income. She would also lower the maximum amount that people would have to pay toward insurance plans bought on the Obamacare marketplaces, from 9.7 percent of income to 8.5 percent of income for individuals who earn about $47,000 or less. She would also address the so-called “family glitch,” essentially fixing a problem where some families were wrongly deemed ineligible for Obamacare tax credits. Finally, she would add a public insurance plan to the Obamacare marketplaces—reviving an idea that was written into an early version of the Affordable Care Act, then taken out before the law was passed, and more recently suggested again as a possible solution for states where not enough insurers are participating in the Obamacare marketplaces.

“Clinton’s proposals are squarely aimed at consumer pocket issues, building on the ACA and in many ways trying to move beyond it,” said Larry Levitt, a senior vice president at the Kaiser Family Foundation. “The RAND numbers, while they don’t analyze all of Clinton’s proposals, show that Clinton’s policies would help move the country closer to universal coverage.”

The report found that each of Clinton’s proposals would increase the number of insured people, with the tax credit having the largest effect. (That idea would also have the largest impact on the deficit, adding about $90.4 billion.)

Impact of Clinton’s Proposed Reforms on the Number of People with Insurance Coverage, U.S. Population Under Age 65, 2018

Rand / Commonwealth Fund

All of her proposals would also reduce the cost of health care for consumers, the report authors predict. With Clinton’s tax credit, individuals making between about $16,000 and $30,000 would see the biggest savings on insurance, about 33 percent less than what they spend now:

Impact of Clinton’s Proposed Reforms on Total Out-of-Pocket Health Care Spending of Insured People, by Income, 2018

Rand / Commonwealth Fund

The public option could insure an additional 400,000 people who have been left out of Obamacare, according to estimates from the report. But health-policy experts question its practicality.

Levitt, with the Kaiser Family Foundation, said it’s still not clear whether doctors would be willing to participate in a public-option plan or how it would entice more healthy people to buy insurance. “A public option plan would essentially be in the same boat as private insurers, with not enough healthy people to balance out the sick people who have signed up,” he said via email.