2004: Howard Dean's infamous yell
www.youtube.com
Howard Dean never become president but the Democrat gained plenty of notoriety during a 2004 Iowa campaign event.

On January 19, 2004, Dean’s rivals John Kerry and John Edwards pushed him into a third-place finish in the 2004 Iowa Democratic caucuses, representing the first votes cast in primary season. Dean’s loud outburst in his public address that night was widely rebroadcast and portrayed as a media gaffe that ended his campaign.