Evertime asked about this stuff he says 'I like my job'. for someone who tries to portray himself as a selfless humanitarian turning down one of the most important positions in one of the worst crisis ever just so he can do have some fun in his investment hobby and get to play brigde every day instead of serving the country seems like a HUGE hypocrisy
That's a job for younger man, imo. Buffet will no doubt have the Pres ear, no matter who that is. He could serve as an advisor with no formal position, much like Baruch did many years ago.