She is not going to win so stop assuming that the hapless Hillary ho is going to win in 2016. The campaign hasn't even started yet and you are already jumping to conclusions.
She (or whoever ends up being the Democrat nominee) will be the next President. That's just the way things are at this point in our history.
The Democrat nominee will offer all sorts of "free stuff" to a large enough segment of the population, while also promising to "punish" (tax) the rich. Right there, you get at least the 48% of the population that is dependent on government "programs" (free food, free housing, free education, free healthcare).
In addition, the way the demographics and population distribution works out, the Democrats have a huge advantage in the electoral college.
And thirdly, the press will - as usual - be giving the Democrat nominee a pass on any issues that might possibly hurt the nominee's chances, while doubling down on the Republican nominee.