Read the latest of political humor with David Letterman with the breaking news about earthquake at Napa Valley. Late Show with David Letterman – Late Night Political Joke Did you hear about the earthquake in California’s Napa Valley? That’s wine country. The Red Cross now says they want some donations of Merlot. A 6.0 earthquake. It was so powerful it knocked Arnold Schwarzenegger off his housekeeper. 6.0 — I’ve had heart attacks bigger than that. How about the Little League World Series. I’m not crazy about a world series that actually features teams from around the world.