LOOKING FOR A FRESH FACE

There are rare moments in history when Americans have sought the comfort of experience over the excitement of novelty. But there are other times when Americans have been drawn to the fresh and the new, which is why Woodrow Wilson, John F. Kennedy, Jimmy Carter and Barack Obama emerged as strong presidential candidates -- all doing so at times of transition or trial. The challenge for political analysts is to gauge the temper of the times -- to determine whether, as it was in 1988, an experienced