The Affordable Care Act, also known as Obamacare, is being put to the test again.
The process of enrolling for year two began on Saturday, but re-enrollment isn't the only challenge.
Republicans in Congress are threatening to hold hearings for answers as to why health care economist Jonathan Gruber was caught on tape saying that the ACA was written so as to hide certain realities on the assumption, perhaps, that voters would be too stupid to notice.
As an aide to the late Sen. Ted Kennedy, John McDonough, a professor at the Harvard School of Public Health, helped to draft the Affordable Care Act. He said it's unclear what the Republican majority can do through the budget process to damage the law.
"Pulling back the subsidies and changing the eligibility for who gets the coverage under the law," are some options, according to McDonough. "There could be some significant brinkmanship."