I don't really understand this notion floated below by Glenn Loury and (to some extent) James Pinkerton that we don't really know Obama. Loury points out that Obama has rounded off the edges of a lot of his arguments so as to appeal to as many people as possible and thus has the left the nation unclear on what he really thinks. Isn't this what politicians do? How many presidents have published two memoirs of their lives--before and after getting into politics? How many presidents have confessed to drug use? As Jamelle Bouie points out, there's even the David Remnick biography (which Barack Obama was interviewed for) laying bare the man's entire life.