The Arkansas expansion has been a model for other Republican-leaning states because of its use of commercial health plans operating in the states insurance exchange

Medicare's Marilyn Tavenner is stepping down in light of PPACA's enrollment error.

Large employers are increasingly putting an end to their most generous health-care coverage as a tax on Cadillac insurance plans looms closer under Obamacare.

Republicans, newly in charge of the House and Senate, begin their campaign to dismantle PPACA with a vote this week to ease the laws requirement that large employers give health insurance to full-time workers.

In total, 2.5 million Americans have signed up for health insurance plans since Nov. 15, when the online system opened for business.

Gov. Bill Haslam, a Republican, announced today that the state would expand its Medicaid program for the poor under a real Tennessee solution that the Obama administration supports in principle.

Republicans in the U.S. House of Representatives subpoenaed an MIT economist to demand records of his work on Obamacare for federal and state governments that they say will shed light on how the law was passed.

Its a dramatic turnabout from a year ago, when the federal website was brought to a standstill by errors, requiring a two- month repair effort.