Not to mention that Joe Biden wants to run in 2016. And Hillary, though I’m sure she could be Petraeus’ed before then.
The way this is going, they can be Prez of the 8 United States left, for as long as they want. The rest will be re-forming and fully recognizing the original Constitution.
How long nobama or biteme can be Prez more depends on how soon the ComeYets starve or freeze without very much oil and gas or national income.