This one probably isn't well known enough to make the cut but I really love it. Michael Douglas as President Andrew Shepard in The American President telling off his challenger in the upcoming election. Great speech.
Sorry I couldn't find a youtube of the entire speech to embed.
http://www.americanrhetoric.com/Movi...president.html
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courtesy of BoneKrusher
"Baseball? It's just a game. As simple as a ball and bat, yet as complex as the American spirit it symbolizes. It's a sport, a business and sometimes a religion."
Ernie Harwell