Vascular Dementia:
She has 1.5 years, maybe two.
The goal is to name Turbo-charged Commies to the Supreme Court, maybe even Obama.
Her Presidency would be a couple shots of her waving from behind an armored Limo window a couple times per week, sort of like an ailing Pope in his final days.
Enough time to put neocons in charge of the State Department.