You can only BS people for so long before they start to catch on.
The 'big lie' of Obamacare has spotlighted the deceptive nature of Obama and progressives and their willingness to do whatever is necessary in order to justify their desired ends. At the same time, the complete debacle of the program launch highlights the practical failings of big government and its inability to deliver on the grand abstract, idealistic promises.
Now they know that he's just another bullshitting politician who believes that they're stupid and need to be manipulated for their own good. Something that even the truly stupid understand, resent, and react to. His practice of lawyerly parsing all of his words just makes him look even more disingenuous when people begin to recognize the technique. It doesn't save you to later come back and say that, technically, you didn't really say what you obviously were trying to make people believe that you were saying. In fact, it just makes it worse.
Which leaves the stench of bullshit on him and all that he stands for. He'll never get 'it' back. Everything that he touches now will be viewed in the same light.
Game over.