Jackson, Miss. State leadership committees for the Mississippi Republican and Democratic parties are staking out opposite positions on Medicaid expansion.
Resolutions adopted by the two groups in the past few days reflect what their own elected officials have been saying for months.
Democrats say they support Medicaid expansion as a way to help lower-income working people.
Republicans say they oppose expansion because they don't like the federal health law that President Obama signed in 2010.
Under that law, states have the option of expanding Medicaid coverage to people making up to 138 percent of the federal poverty level. That's an income of about $15,500 for one person.
The federal government would pay most of the tab for expansion, but Republican Gov. Phil Bryant says Mississippi can't afford any additional Medicaid expenses.