From Timothy Noah in Slate: Hillary Clinton, Fairy Princess:
Here’s a rule I would like every political reporter, campaign official, TV talking head, and politician in the United States to follow. Go ahead and say, if you like, that Hillary Clinton retains a serious chance of winning the Democratic nomination. If you say this, however, you must describe a set of circumstances whereby this could happen. Try not to make it sound like a fairy tale.
He goes on to explore this in detail. For an Obama supporter, it’s a reassuring exercise.