Slate:"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...."So, please, let's stop pretending there's much suspense about who the nominee will be. As an...