As Hilary gets fatter and unhealthier the Dems just want to drag her over the finish line. Get her elected and inaugurated then Tim Kaine can take over any time she poops out totally like in months. Bill and Hill want the presidency all to themselves but Tim Kaine is the Dems fallback.
And of course Bill the bent one would want her down but not out so he could rule as de facto presidente in her incapacitation.