Democrats have long been promising that, once people get signed up, they're going to love ObamaCare. Candidates are going to run on its merits, and the law is going to be a big positive for Dems during the 2014 midterms. Those who were still against it were a small, dwindling minority. As soon as the signup date passed, and the target numbers were (allegedly) reached, negative perception was supposed to fade away.