There’s a big question mark for President Obama’s healthcare law heading into 2016 — and it isn’t just about how the Supreme Court will rule on the legality of federal exchange subsidies.

Though the Department of Health of Human Services boasted this week that enrollment in Obamacare is consistent with the administration’s expectations, in reality, it has lagged behind original expectations for the second year in a row. The question is, can enrollment make a quantum leap in 2016 just to catch up?