Senator Obama’s speech does share one quality with Cooper Union, Gettysburg, the FDR Inaugural, Henry V at Agincourt, Socrates’ Apology, etc.: It’s history. He said, apropos the Rev. Jeremiah Wright, that “I could no more disown him than I can disown my white grandmother.” But last week Obama did disown him. So, great-speech-wise, it’s a bit like Churchill promising to fight them on the beaches and never surrender, and then surrendering a month and a half later, and on a beach he decided not to fight on.