Why didn't all White people vote for Obama Since some beg the question about blacks voting for Obama...?

I just want to know.I know many did because he was a good choice over McCain and Palin.But what about the rest.Why not trust him to be President like you have in the past for other Presidents.And don't start tripping.Im no racist. Ive been with them my whole life.Lived with them...cried with them fought with them and loved them so...What say you?