My "research" led me to this most-probable coffee-table discussion between The Messiah and Michele:
POTUS: You know, Michele, how hard I have tried to fulfill my duties. The House of Representatives is not under control of its elephantine leadership; John #$%$ can't deliver. Harry is a weak reed as Senate majority leader and is having trouble mustering votes. The Congress is playing games, wants to shut down the government, and kill The Affordable Healthcare Act. While I'd like to see immigration reform passed and other important legislation, I am getting tired and have little reliable support. How about if I just become a passive Chief Executive, play more golf, take more trips, and go out as a lame duck with my health and sanity? Sort of like Peanuts Carter did.....
Michele: Oh no, Barry. Too soon to fade away while in office. There are still a whole bunch of things left for you to screw up before we go back to Shy Town.
ACE: Disillusioned like a lot of other folks around the world