How could a repeal "vote" in the House -- however dramatic but still, only symbolic -- be misunderstood as an actual repeal by so many Americans?

First, people are very busy just getting through the day and they don't have a lot of time to sort through news reports about the policymaking process. They see the word "repeal" in the local paper or hear it on TV and think the law has been repealed. Second, there may be some partisan wishful thinking going on; 30 percent of Republicans think the law has been repealed while only 12 percent of Democrats do. But overall, it is obvious that the knowledge of basic civics is pretty low. Maybe it's because "Schoolhouse Rock" is no longer airing on Saturday morning TV explaining how government works.