I know its a long time between now and 16' but I am starting to wonder if anyone will challenge SoS Clinton for the Democratic Nomination. It appears she and her only likely opposition, VP Biden may have come to some sort of an agreement. Most insiders would agree that it is helpful for a primary candidate to have some sort of an opponent, but I wonder, incumbents usually don't have an opponent... I'm sure that H. Clinton will drum up a weak opponent if she feels its to her advantage, but the Clintons have become so powerful I wonder if they have effectively handicapped the field.