You didn’t know that, because it’s not true. Cain was born on December 13, 1945, and would be 67, not 74, when inaugurated. Doesn’t look it, IMO.
Gotta find another good conservative VP for Palin in 2016 because very likely that person, like Reagan's Bush, will be elected POTUS in 2020. POTUS in 2020 also HAS to be a conservative for our wonderful country to survive, IMO.