The number of partnership states could grow significantly, since the Obama administration has given states until next February to decide on that option. As of Thursday, 16 states indicated that they were weighing their options and have not made a final decision.
Among those, Ohio and Tennessee were considering the partnership route. And in Florida, Republican Gov. Rick Scott is now saying he wants to find a way to work with the federal government after years of steadfastly opposing Obama's overhaul.
Finally, 13 states have indicated they will default to the federal government, allowing Washington to set up and run their exchanges. The health care law provided that the feds would run exchanges in states that were not ready or willing to do so. In this group are states whose Republican governors have staunchly opposed the law, including Texas, Louisiana and South Carolina.