It'll be hard to measure the law's impact because of reported changes to questions.
Health reform implementation
Insurance coverage provisions will cost $104 billion less than estimated over 10 years.
She'll have a lot on her plate as the next leader of HHS.
“I've never ran away from ObamaCare," the Maryland Democrat said.
Rep. Marsha Blackburn called Sylvia Mathews Burwell an “interesting choice.”
Sebelius said she was "flat-out wrong" to believe that HealthCare.gov was ready to go.
President Obama's nominee would have more on her plate than just the healthcare law.
More than 50 percent of voters still disapprove of the law, according to two new polls.
Obama has selected his OMB director to replace Sebelius.
"Unfortunately, a page is missing," she announced in the middle of her resignation speech.