A different healthcare issue has emerged for Democrats, in sync with the party's pitch to workers and middle-class voters ahead of next year's elections.
It's not the uninsured, but rather the problem of high out-of-pocket costs for people already covered.
Democrats call it "underinsurance."
After paying premiums, many low- and middle-income patients still face high costs when trying to use their coverage. There's growing concern that the value of a health insurance card is being eaten away by rising deductibles, the amount of actual medical costs that patients pay each year before coverage kicks in.
"I think it's going to be the next big problem," said Rep. Jim McDermott, D-Wash., a congressional leader on healthcare.
"We've got some 17 million more people covered ... but they can't access the care they seem to be entitled to," McDermott said. "It costs too much to use the care. That's the deceptive part about it."
Since virtually all U.S. residents are now required to have health insurance by President Barack Obama's healthcare law, McDermott said Democrats have a responsibility to make sure coverage translates to meaningful benefits.
Several liberal-leaning organizations have recently focused on the issue.