Last week, the Centers for Medicare and Medicaid Services released the 2016 premium data for the “benchmark” plans in the states using federal exchanges. … This data, which showed premiums rising an average of 7.5 percent, is useful. But it is limited. We’d like to think that this tells us “how much premiums went up,” but it’s not that simple.

As Marketplace enrollees begin to shop for coverage starting in 2016, the number of insurance choices available to them is changing in some parts of the country. In early 2015, an average of 6.1 insurer groups offered coverage in each state, up from an average of 5.0 in 2014. Since then, some insurers have announced their exit or been required to withdraw from the Marketplaces, most notably a number of nonprofit Consumer Operated and Oriented Plans (CO-OPs) and some larger insurers like Blue Cross Blue Shield of New Mexico. Despite these withdrawals, the Department of Health and Human Services (HHS) recently announced that the average number of issuers per state is increasing slightly in 2016 and that about 9 out of 10 returning Healthcare.gov customers will have 3 or more insurers from which to choose in 2016.

Yesterday’s post discussed what we know about Obamacare as its third open enrollment season commences. Here are four major questions about the future of Obamacare that remain unanswered.

Douglas Holtz-Eakin is the president of the American Action Forum and a former director of the Congressional Budget Office. He also served on President George W. Bush’s Council of Economic Advisers. With the Affordable Care Act’s insurance marketplaces beginning their third open enrollment this week, RealClearHealth talked to Holtz-Eakin about what’s working, what’s not working, what can be done today to address problems with the law, and what should be on the agenda of a new administration in 2017.

The financial failure of more than half the nonprofit health insurance companies created under the Affordable Care Act has handed Republicans a new weapon in their campaign against the health law, thrown the Obama administration on the defensive once again and left more than a half-million consumers in the cold.

Some observers might question the usefulness of ongoing policy discussion about health insurance coverage for pre-existing conditions. After all, as of January 2014, insurers are barred from excluding such conditions from their policies, even for short periods, by the Patient Protection and Affordable Care Act (ACA). Moreover, insurers are no longer allowed to charge higher-than-average premiums to consumers with higher-than-average expected health costs. In short, many would say the ACA has solved the problem, so there’s nothing more that needs to be discussed.

Douglas Holtz-Eakin is the president of the American Action Forum and a former director of the Congressional Budget Office. He also served on President George W. Bush’s Council of Economic Advisers. With the Affordable Care Act’s insurance marketplaces beginning their third open enrollment this week, Real Clear Health talked to Holtz-Eakin about what’s working, what’s not working, what can be done today to address problems with the law, and what should be on the agenda of a new administration in 2017.

Yesterday’s post discussed what we know about Obamacare as its third open enrollment season commences. Here are four major questions about the future of Obamacare that remain unanswered.

More than half of the 23 taxpayer-funded Obamacare insurance startups are not offering plans next year, and another in Michigan said Tuesday that it was winding down. Michigan’s Consumers Mutual Insurance announced late Tuesday it would not offer plans in 2016, making it the 12th Obamacare consumer-operated and oriented plan to close up. The closure comes two days into Obamacare’s third open enrollment period, and on the same day a congressional panel lashed out at an administration official about the spate of shutdowns.