So. Hillary Clinton, then. The next president of the United States? Well, let's see: her closest rival for her own party's nomination is Joe Biden, and a recent poll suggests Clinton has a 61-point lead over the rather mawkish vice-president. The same poll gives her a 65-point edge over the next most mentioned Democratic contender, Massachusetts Senator Elizabeth Warren. There are other possibilities, most of them in the same league. That makes Clinton the highest-rated Democratic front-runner ever.