I think that Obama was blackmailing Petraeus, but I can’t be sure. It’s best to keep an open mind and consider that Obama and Petraeus are still on good terms. Petraeus may never say anything bad about Obama.
I think so too, and it kept him quiet until after the election. I also think they went to the well once too often, as often happens with blackmailers, so he did the only thing he could. He blew the whistle on himself. I'd be interested in what that one thing was.