The word is that neither she nor Bill are in top shape physically, she is having a very hard time getting her weight down. It is said the campaign is moribund. Observers here, some of whom work for the Democrats as volunteers [which you need to make illegal NOW...allowing foreigners to help influence the vote,...] and they say the campaign is out of touch, her campaign theme is nearly 50 years old, her audiences mean age in the 40's.
I also know she has been campaigning for seven years, full time for three; she has become a full time professional campaigner., her CV consists of being the estranged wife of a governor then president, and seasoned traveler. And we know that the demographics have shifted to the lower number.
And the political landscape has shifted. She did not fair well in her "audition" as Secretary of State, she was weak on foreign policy before, and now has serious question marks about her ability and honesty.
The Gruber Low Information Voter cuts two ways. Where the D's are championing her "escape" from Benghazi hell, now there are headlines about other 'stuff' and question marks in her term as SC, AND now a clear example of the lost ground to terrorists and the destabilization of Egypt, Libya, Iraq, Syria et al under her watch.
If she runs, the nomination will be a coronation. But I do not think she has the stamina nor thick enough skin to face what will come at her. Obama in eight years has upped the ante, where "harsh" was the norm in US character assassination politics, 'cruelty and abuse' have replaced it. Watch for the Republicans to bring up Obama's people's charges of racism against her...me, I would be asking "why elect a woman who can't keep her man at home?" and other very cruel destructive questions that have nothing to do with any issues, just as the Obama camp has played. And I would also be sure to and bag her like the "47%" tape on Romney, only often and hard.
I was once told by a Canadian master, a Francophone MP and Senator who had survived decades as a Liberal is that "politics is how we replaced warring to be leader. It is as cruel, perhaps more because it is bloodless. If is not, cruel, you are not in politics'
The D's are just beginning to realize what they have wrought.