President Donald Trump’s signature budget legislation would punish 14 states that offer health coverage to people in the U.S. without authorization.

The states, most of them Democratic-led, provide insurance to some low-income immigrants — often children — regardless of their legal status. Advocates argue the policy is both humane and ultimately cost-saving.

But the federal legislation, which Republicans have titled the “One Big Beautiful Bill,” would slash federal Medicaid reimbursements to those states by billions of dollars a year in total unless they roll back the benefits.

The bill narrowly passed the House on Thursday and next moves to the Senate. While enacting much of Trump’s domestic agenda, including big tax cuts largely benefiting wealthier Americans, the legislation also makes substantial spending cuts to Medicaid that congressional budget scorekeepers say will leave millions of low-income people without health insurance.

The cuts, if approved by the Senate, would pose a tricky political and economic hurdle for the states and Washington, D.C., which use their own funds to provide health insurance to some people in the U.S. without authorization.

Those states would see their federal reimbursement for people covered under the Affordable Care Act’s Medicaid expansion cut by 10 percentage points. The cuts would cost California, the state with the most to lose, as much as $3 billion a year, according to an analysis by KFF, a health information nonprofit that includes KFF Health News.

Together, the 15 affected places cover about 1.9 million immigrants without legal status, according to KFF. The penalty might also apply to other states that cover lawfully residing immigrants, KFF says.

Two of the states — Utah and Illinois — have “trigger” laws that call for their Medicaid expansions to terminate if the feds reduce their funding match. That means unless those states either repeal their trigger laws or stop covering people without legal immigration status, many more low-income Americans could be left uninsured.

The remaining states and Washington, D.C., would have to come up with millions or billions more dollars every year, starting in the 2027 fiscal year, to make up for reductions in their federal Medicaid reimbursements, if they keep covering people in the U.S. without authorization.

Behind California, New York stands to lose the most federal funding — about $1.6 billion annually, according to KFF.

California state Sen. Scott Wiener, a Democrat who chairs the Senate budget committee, said Trump’s legislation has sown chaos as state legislators work to pass their own budget by June 15.

“We need to stand our ground,” he said. “California has made a decision that we want universal health care and that we are going to ensure that everyone has access to health care, and that we’re not going to have millions of undocumented people getting their primary care in emergency rooms.”

California Gov. Gavin Newsom, a Democrat, said in a statement that Trump’s bill would devastate health care in his state.

“Millions will lose coverage, hospitals will close, and safety nets could collapse under the weight,” Newsom said.

In his May 14 budget proposal, Newsom called on lawmakers to cut some benefits for immigrants without legal status, citing ballooning costs in the state’s Medicaid program. If Congress cuts Medicaid expansion funding, the state would be in no position to backfill, the governor said.

Newsom questioned whether Congress has the authority to penalize states for how they spend their own money and said his state would consider challenging the move in court.

Utah state Rep. Jim Dunnigan, a Republican who helped spearhead a bill to cover children in his state regardless of their immigration status, said Utah needs to maintain its Medicaid expansion that began in 2020.

“We cannot afford, monetary-wise or policy-wise, to see our federal expansion funding cut,” he said. Dunnigan wouldn’t say whether he thinks the state should end its immigrant coverage if the Republican penalty provision becomes law.

Utah’s program covers about 2,000 children, the maximum allowed under its law. Adult immigrants without legal status are not eligible. Utah’s Medicaid expansion covers about 75,000 adults, who must be citizens or lawfully present immigrants.

Matt Slonaker, executive director of the Utah Health Policy Project, a consumer advocacy organization, said the federal House bill leaves the state in a difficult position.

“There are no great alternatives, politically,” he said. “It’s a prisoner’s dilemma — a move in either direction does not make much sense.”

Slonaker said one likely scenario is that state lawmakers eliminate their trigger law then find a way to make up the loss of federal expansion funding.

Utah has funded its share of the cost of Medicaid expansion with sales and hospital taxes.

“This is a very hard political decision that Congress would put the state of Utah in,” Slonaker said.

In Illinois, the GOP penalty would have even larger consequences. That’s because it could lead to 770,000 adults’ losing the health coverage they gained under the state’s Medicaid expansion.

Stephanie Altman, director of health care justice at the Shriver Center on Poverty Law, a Chicago-based advocacy group, said it’s possible her Democratic-led state would end its trigger law before allowing its Medicaid expansion to terminate. She said the state might also sidestep the penalty by asking counties to fund coverage for immigrants. “It would be a hard situation, obviously,” she said.

Altman said the House bill appeared written to penalize Democratic-controlled states because they more commonly provide immigrants coverage without regard for their legal status.

She said the provision shows Republicans’ “hostility against immigrants” and that “they do not want them coming here and receiving public coverage.”

U.S. House Speaker Mike Johnson said this month that state programs that provide public coverage to people regardless of immigration status serve as “an open doormat,” inviting more people to cross the border without authorization. He said efforts to end such programs have support in public polling.

A Reuters-Ipsos poll conducted May 16-18 found that 47% of Americans approve of Trump’s immigration policies and 45% disapprove. The poll found that Trump’s overall approval rating has sunk 5 percentage points since he returned to office in January, to 42%, with 52% of Americans disapproving of his performance.

The Affordable Care Act, widely known as Obamacare, enabled states to expand Medicaid to adults with incomes of up to 138% of the federal poverty level, or $21,597 for an individual this year. Forty states and Washington, D.C., expanded, helping reduce the national uninsured rate to a historic low.

The federal government now pays 90% of the costs for people added to Medicaid under the Obamacare expansion.

In states that cover health care for immigrants in the U.S. without authorization, the Republican bill would reduce the federal government’s contribution from 90% to 80% of the cost of coverage for anyone added to Medicaid under the ACA expansion.

By law, federal Medicaid funds cannot be used to cover people who are in the country without authorization, except for pregnancy and emergency services.

The other states that use their own money to cover people regardless of immigration status are Colorado, Connecticut, Maine, Massachusetts, Minnesota, New Jersey, Oregon, Rhode Island, Vermont, and Washington, according to KFF.

Ryan Long, director of congressional relations at Paragon Health Institute, an influential conservative policy group, said that even if they use their own money for immigrant coverage, states still depend on federal funds to “support systems that facilitate enrollment of illegal aliens.”

Long said the concern that states with trigger laws could see their Medicaid expansion end is a “red herring” because states have the option to remove their triggers, as Michigan did in 2023.

The penalty for covering people in the country without authorization is one of several ways the House bill cuts federal Medicaid spending.

The legislation would shift more Medicaid costs to states by requiring them to verify whether adults covered by the program are working. States would also have to recertify Medicaid expansion enrollees’ eligibility every six months, rather than once a year or less, as most states currently do.

The bill would also freeze states’ practice of taxing hospitals, nursing homes, managed-care plans, and other health care companies to fund their share of Medicaid costs.

The Congressional Budget Office said in a May 11 preliminary estimate that, under the House-passed bill, about 8.6 million more people would be without health insurance in 2034. That number will rise to nearly 14 million, the CBO estimates, after the Trump administration finishes new ACA regulations and if the Republican-led Congress, as expected, declines to extend enhanced premium subsidies for commercial insurance plans sold through Obamacare marketplaces.

The enhanced subsidies, a priority of former President Joe Biden, eliminated monthly premiums altogether for some people buying Obamacare plans. They are set to expire at the end of the year.

This article was produced by KFF Health News, which publishes California Healthline, an editorially independent service of the California Health Care Foundation. 

KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

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