During the Supreme Court’s oral arguments over Obamacare in March, CNN’s legal analyst Jeffrey Toobin famously said this: “This was a train wreck for the Obama administration. This law looks like it’s going to be struck down. All of the predictions, including mine, that the justices would not have a problem with this law were wrong.”…

And to make matters worse, CNN and Fox News blew the initial reporting of the ruling Thursday morning.

In upholding the president’s health care law, the John Roberts court shocked the capital precisely because the media mavens had concluded that the law’s individual mandate was about to be consigned to the dustbin of history. Toobin may have been the most visible commentator venturing a bold prediction, but he had plenty of company.

This is the problem with so much media prognostication. We’re bad enough at forecasting presidential primaries and vice-presidential picks. But to try to divine what a court may do in a complicated legal case borders on malpractice.