No decline here, hum do the math.
Check it out:

In a conference call with reporters on Tuesday afternoon, Health and Human Services officials said February was a “short month,” and that may explain why more people enrolled in Obamacare in January than signed up in February.

But don’t call the 943,000 February sign-ups a decline from January’s 1.146 million!

The 203,000 fewer people who enrolled in Obamcare in February than in January was a drop of 17.7 percent.