As the federal shutdown drags on, what is the future of the Affordable Care Act?

Democrats remain steadfast in demands for an extension of healthcare subsidies.

The government shutdown has reopened debate on what has been a central issue for both major political parties in the last 15 years: the future of health coverage under the Affordable Care Act.

Tax credits for people who get health insurance through the marketplaces created by the Affordable Care Act, also known as Obamacare, expire at the end of the year.

Democrats say they won’t vote to reopen the government until Republicans negotiate an extension of the expanded subsidies. Republicans say they won’t negotiate until Democrats vote to reopen the government. Lawmakers in both parties have been working on potential solutions behind the scenes, hoping that leaders will eventually start to talk, but it’s unclear if the two sides could find compromise.

As Congress circles the issue, a poll from The Associated Press-NORC Center for Public Affairs Research found that about 6 in 10 Americans are “extremely” or “very” concerned about their health costs going up in the next year. Those worries extend across age groups and include people with and without health insurance, the poll found.

A look at the subsidies that are expiring, the politics of the ACA and what Congress might do: