When Joe Biden announced that he had written a memoir of his four years as president, the reaction on the blogosphere was mockery. Even his most ardent defenders now admit that the guy was barely functional as president, that he was kept under lock and key by White House staff for most of four years, and that the mainstream press was in on the cover-up. Biden needed cue cards to handle press questions. He needed a guy dressed in a bunny suit to keep him from saying stupid things to citizens. He needed an autopen to sign presidential documents. He...