Two debates in one night means twice the political theater and twice the logistical and production challenges behind the scenes.
For several months, producers have been working in Manchester, turning a small New England liberal arts college into a television studio and the center of the storm that is the 2008 presidential primary season this weekend.
"It's a pretty big operation to put on: four hours of prime time television," explains David Reiter, ABC News' senior producer for the debate....
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