Most of us have complicated backstories, messy histories, multiple narratives. It was a high-wire strategy, for Obama, this invocation of our collective human messiness. His enemies latched on to its imprecision, emphasizing the exotic, un-American nature of Dream City, this ill-defined place where you could be from Hawaii and Kenya, Kansas and Indonesia all at the same time, where you could jive talk like a street hustler and orate like a senator.