NEW YORK -- David Letterman was ushered into retirement Wednesday by four presidents declaring "our long national nightmare is over" and a succession of stars delivering a final Top Ten list of things they always wanted to say to the late-night host.

The late night host got reflective during his final show. Here's what he said. — -- David Letterman joked about Elian Gonzalez, Scientology and the late-night battles of the 1990s in the monologue for his final episode of "Late Show" Wednesday.