Not only did John McCain ditch Late Show host David Letterman for Katie Couric and mislead him about it, it turns out the Republican presidential nominee spent the entire night in New York and didn't fly to DC until the next morning. So, in a reprise of last night, Letterman will spend a good chunk of his show this evening bashing the Arizona senator. "The economy just barely held on long enough for him to get back" to DC, Letterman joked. As theatrical as the Letterman-McCain feud has become, Letterman could probably score more points talking about the $700 billion banking bailout than about the mechanics of late-night TV booking. Here's to hoping that, when the full show airs, he does. (Click the video icon to watch some excerpts.)