…and still a mess:

It’s a situation no one anticipated when the Affordable Care Act was written. The law assumed states would create and operate their own exchanges, and set aside billions in grants for that purpose.

Why did the law assume that? Because, as Ramesh Ponnuru wrote back in October, “The law’s supporters . . . expected the health-care law to become more popular over time.” T’was ever thus, for blind optimism is Obamacare’s founding principle: If people understand it, they’ll like it; if Obama makes just one more speech about it, they’ll like it; if Congress passes it, they’ll like it; if HHS spends millions of dollars promoting it, they’ll like it; if the states are forced to implement it, they’ll like it. And so on and so forth. And yet…

This is why federalism was invented.