Of course in reality it was Republicans who have been warning about Obamacare since it was passed.

Decrying GOP sabotage of HealthCare.gov — Jonathan Capehart

The rollout of the federal health-care exchange under the Affordable Care Act has been a grade-A debacle. There is absolutely no denying it. And The Post’s big Sunday story on the combination of poor planning and political timidity puts the entire mess into perspective. Knowing that President Obama relentlessly admonished his team that “if the Web site doesn’t work, nothing else matters” makes it all the more infuriating. […]

So, the federal exchange that Republicans said wouldn’t work ended up not working because the GOP pressured Republican governors to not form their own state exchanges. This made the federal task more complex and difficult, thus ensuring its failure.

Of course, foot dragging by a ’fraidy cat White House aided the failure. But after reading The Post story on the debacle that is the Obamacare debut, what the GOP gleefully calls a train wreck was a self-fulfilling prophesy courtesy of Republican sabotage.