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Dean’s energetic yell following the 2004 Iowa Caucus comes across as bizarre and unpresidential, and the gaffe effectively ends his campaign.
03:56 — Former Mass. Governor and Democratic presidential candidate Michael Dukakis gives an insider's view of being a presidential nominee of a major party.
03:03 — In 1988, New York was home to an ugly, three-way primary fight between Democrats Al Gore, Jesse Jackson and Michael Dukakis.