Letterman's become a real politico lately... Aside from this video, he's made some serious jabs at McCain's campaign. FYI, Obama is on his show tonight!

Quoted: "We are dead meat," said David Letterman last night in the midst of a lengthy rant on global warming. He blamed a lack of leadership over the last several decades. He also said he didn't think that little steps like reusing party toothpicks or turning lawn clippings into mulch could possibly help.