Howard Dean was a favorite to win the Democratic nomination for president in 2004. That is, until the former Vermont governor gave a speech at the Iowa caucus in January 2004 and delivered the scream heard around the world. His overenthusiastic “YEAH!” reverberated as a global joke, essentially ending his chances at ever winning the White House. The media replayed the gaffe constantly, with everyone from Dave Chappelle to Diane Sawyer offering commentary on it. Dean dropped out of the race a month later.