In case there was any lingering doubt, David Letterman remains the best thing on television.
(Context: John McCain was set to appear on Letterman last night, then canceled at the last minute to suspend his campaign, fly to Washington, and deal with the economic crisis. This is a clip from last night's show, and Letterman's reaction to the cancellation. The best stuff starts around 4:45.)
Letterman, for the win,
P.S. Please don't use the comments section here to discuss your personal politics. I'm not interested in the political context for this clip. It's just great television.