Oh! How could I forget...

There is of course the cuddly astrophysicist! 
Cheick Modibo Diarra; ex-NASA space programme; ex-interim Prime Minister, who fulfilled that position admirably until he was kicked out in unclear circumstances, probably not reflective on his performance or character.   He would be my second choice.  He has spent long in the US and is au fait with the all-important Baby element in election tactics.