The politics of any political convention is interesting for only the briefest of moments. Leading into the 1960 convention, Eleanor Roosevelt publicly hoped that John Kennedy's "unselfishness and courage" would lead him to accept the vice presidency where he could "grow and learn." The novelist Gore Vidal contributed an unused draft of Kennedy's convention speech. Sammy Mysels -- the composer of "Mention My Name in Sheboygan" -- co-wrote the Democratic campaign song.But the right convention speech can transcend the trivia -- and Kennedy had a talent for injecting significance into a political moment. After almost 50 years, the New Frontier remains a vague concept, having something to do with the rising generation that fought World War II and the coming burdens of the Cold War. But the speech lent the young senator a gravity that comes with sternness, promising "more sacrifice instead of more security."
Once again we are hip-deep in convention politics, and Barack Obama has no shortage of tactical advice: Peel the bark off John McCain. Deal with "bread and butter" economic issues. Abandon all this gauzy "rhetoric." And Obama seems to have embraced the conventional wisdom: "I'm not aiming for a lot of high rhetoric," he said Monday. "I'm much more concerned with communicating how I intend to help middle-class families live their lives. ... This is going to be a more workmanlike speech."
That would be a blunder of historic proportions, precisely because Obama has been given a unique historical moment. He will fill it with significance or eventually be filled with regret.
Obama is advised to emphasize middle-class economic themes, as all recent Democrats have done. But to make a speech that will outlive the moment, he should also address America's deeper divisions based on wealth and opportunity, rooted in slavery and segregation, hidden behind highway sound barriers, revealed in crises such as Katrina, forgotten in a politics where only the middle class seems to count. Inequality is inseparable from liberty in a society that rewards striving -- but inequality becomes morally unjustifiable in the absence of economic mobility. America cannot accept the existence of a permanent underclass without altering its defining ideals. If Obama doesn't confront this reality -- given his background and aspirations of unity and justice -- it is hard to imagine that it will ever be confronted.