In this NYT commentary, Academy Award-winning documentary film-maker Errol Morris argues that when John Kerry left out a key part of his biography -- his opposition to the Vietnam War -- he committed a major strategic error in his race for the U.S. presidency.

Some excerpts:

SO why is George W. Bush taking the oath of office this week and not John Kerry? For me, the answer is clear: Mr. Kerry failed because of his inability to tell his own story. John Kerry could have presented to the American people his full biography, but instead he chose to edit who he was. Why?

My guess is that Mr. Kerry and his campaign believed that certain things could not be mentioned. Foremost among these was Mr. Kerry's opposition to the war in Vietnam, which was largely erased from the candidate's life. That was a mistake. People think in narratives - in beginnings, middles and ends. The danger when you edit something too severely is that it no longer makes sense; worse still, it leaves people with the disquieting impression that something is being hidden.

Muting Mr. Kerry's opposition to the Vietnam War had precisely this effect. Remember, this is the man who in 1971 made the following statement to the Senate Foreign Relations Committee:

"Each day to facilitate the process by which the United States washes her hands of Vietnam someone has to give up his life so that the United States doesn't have to admit something that the entire world already knows, so that we can't say they we have made a mistake. ... We are asking Americans to think about that, because how do you ask a man to be the last man to die in Vietnam? How do you ask a man to be the last man to die for a mistake?" ...

Though George W. Bush's military record was arguably less impressive than his opponent's, the Republicans never misrepresented who he was. Mr. Bush never pretended to be a war hero. He never pretended to be anything but a ne'er-do-well who turned his life around when he became a born-again Christian. His life story made sense; it was recognizable and easy to understand. There was no point in attacking him about his war record (or lack of one): he had already conceded the point. He had never claimed to be a hero. ...

... John Kerry lost because he concealed something that was completely honorable, even heroic: his opposition to Vietnam. George W. Bush told the truth about something that, to my mind, was not honorable: he supported that war but found a way to stay home. Mr. Kerry was forthright about almost everything except himself - and in this election that was not enough.

As an FYI, the George Butler film Going Up River: The Long War of John Kerry, did deal extensively with Kerry's involvement in Vietnam Veterans Against The War (see my review here; it has links to the film website and to rottentomatoes.com).