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RENEE MONTAGNE, HOST:
And I'm Renee Montagne.
Today, the House of Representatives votes again on President Obama's health care law.
INSKEEP: The Republican majority is expected to repeal it as they have many times before.
MONTAGNE: And repeal is expected to go nowhere in the Senate, as it has many times before.
INSKEEP: It's seen as a largely symbolic vote today after the Supreme Court upheld the law.
MONTAGNE: But in finding the law to be largely constitutional, the Court made one very real change. The Court said a major expansion of the Medicaid program is now an option for states, rather than a requirement. The ruling means governors across the nation have big decisions to make.
NPR's Julie Rovner reports.
JULIE ROVNER, BYLINE: On Monday, Texas Governor Rick Perry became the latest of about half a dozen Republican state executives to declare that they won't be expanding Medicaid to everyone in their states, with income under about $15,000 a year. Here he is Fox News.
GOVERNOR RICK PERRY: We're not going to participate in exchanges. We're not going to expand Medicaid. We're just not going to be a part of, again, socializing health care in the State of Texas and going in direct conflict with our founding fathers wishes and freedom, for that matter.
ROVNER: Now, Perry and most of his colleagues say they're rejecting the health law for mostly ideological reasons. That's because when it comes to Medicaid, the states don't appear to be on the hook for very much money.
Jeff Goldsmith is a health policy analyst who teaches at the University of Virginia.
JEFF GOLDSMITH: The law provided 100 percent coverage for people newly eligible for Medicaid by the federal government, and 90 percent in the out years.
ROVNER: Compare that to the rest of the Medicaid program, where the federal government pays an average of just under 60 percent. But it's not just those newly eligible people states are worried about.
DENNIS SMITH: Folks don't really understand the struggle states are in.
ROVNER: Dennis Smith is secretary of the Wisconsin Department of Health Services. He says this year his state put more than a billion dollars into its existing Medicaid program.
SMITH: That took up literally almost the entire new revenues available to the state.
ROVNER: Meaning revenues not just for healthcare, but also for education, transportation, law enforcement, and everything else expected of the state.
SMITH: And we still faced a $600 million budget gap. So states just don't have the dollars, even with those enhanced federal match rates.
ROVNER: What really has a lot of the leaders worried is something called the woodwork effect. What that means is that when the big parts of the health law go into force in 2014, it will bring out of the woodwork the millions of people who are already eligible for Medicaid but not currently enrolled.
Bruce Lesley heads First Focus, an advocacy group for children and families.
BRUCE LESLEY: One of the things we think this law will do is, as people come in to try to get exchange coverage, will find out the they're actually eligible for Medicaid and that will still be the case.
ROVNER: In other words, people will show up at the new marketplaces to buy private coverage, discover they're eligible for Medicaid, and get enrolled. But many of those people won't be members of that newly eligible expansion group, whose bills will be largely paid by the federal government. They'll be regular old Medicaid people and states will have to pay up to half their costs.
Jeff Goldsmith says what has states most worried is how easy it will be for these currently eligible but un-enrolled Medicaid recipients to sign up.
GOLDSMITH: It won't be an in-person visit, it won't be, you know, a bring-six-forms-of-ID. There will be an expedited - lubricated, if you will - process to get people onto the rolls. And I think that's the part that is giving a lot of state budget officers serious indigestion at this point.
ROVNER: Goldsmith says states officials he's talked to worry that Medicaid, already the largest piece of almost every state budget, could end up dwarfing everything else.
GOLDSMITH: The Health and Human Services secretary of Louisiana told me that at full implementation, 48 percent of the citizens of his state would be on Medicaid.
ROVNER: And across the South, he says, many states could see more than a third of their populations on the program. That has some states looking at cutting back even now. Wisconsin's Dennis Smith, who used to run the federal Medicaid program, says he reads the Supreme Court decision as allowing that.
SMITH: It does open up new questions for states to look at, in terms of not just the expansion but current populations.
ROVNER: That's not what the Obama administration thinks. Last night, the administration said states must continue to cover those currently on the program. That could set off yet another round of arguments.
Julie Rovner, NPR News, Washington.