Well, they could graciously admit that they were wrong, and offer constructive suggestions about how to make the law work even better. Oh, sorry — I forgot that I wasn’t writing jokes for the White House Correspondents’ Dinner.

No, they have in fact continued to do what they’ve been doing ever since the news on Obamacare started turning positive: sling as much mud as possible at health reform, in the hope that some of it sticks. Premiums were soaring, they declared, when they have actually come in below projections. Millions of people were losing coverage, they insisted, when the great bulk of those whose policies were canceled simply replaced them with new policies. The Obama administration was cooking the books, they cried (projection, anyone?). And, of course, they keep peddling horror stories about people suffering terribly from Obamacare, not one of which has actually withstood scrutiny.

Now comes the latest claim — that many of the people who signed up for insurance aren’t actually paying their premiums. Obviously this claim is part of a continuing pattern. It also, however, involves a change in tactics. Previous attacks on Obamacare were pretty much fact-free; this time the claim was backed by an actual survey purporting to show that a third of enrollees hadn’t paid their first premium.

But the survey was rigged. (Are you surprised?) It asked insurers how many enrollees had paid their first premium; it ignored the fact that the first premium wasn’t even due for the millions of people who signed up for insurance after March 15.

And the fact that the survey was so transparently rigged is a smoking gun, proving that the attacks on Obamacare aren’t just bogus; they’re deliberately bogus. The staffers who set up that survey knew enough about the numbers to skew them, which meant that they have to have known that Obamacare is actually doing O.K.