Barack Obama formally ended his presidency the way he came in, talking to adoring fans about how lucky we are to have him in our lives. Indeed, given the hand-wringing over how Obama's successor is all about entertainment and theatrics, it was somewhere between ironic and absurd to watch the outgoing president hold a campaign rally for his "farewell address." And yet, we've become so inured to this kind of self-serving pomp and circumstance that no one seems to care. From what I can tell, no liberal commentators minded at all, and most conservative reviewers went straight to the substance...