David Letterman’s 33-year run on late-night television was marked by his acerbic sense of humor.
Upon retiring in 2015, he’s undergone a metamorphosis into someone almost unrecognizable from the more comedic guy people watched on the “Late Show with David Letterman”.
He’s grown a full beard, which coupled with his balding head, makes him look like a guy wanting to moonlight as a department store Santa Claus.
But beneath that kindly-looking exterior lurks a clearly bitter and troubled man, as evidenced by recent nasty remarks about President Donald Trump.
It’s spelled out on the next page. See how the funny guy seems to have lost his sense of humor.

Letterman, you’re a washed up, has-been, no one cares about your pathetic liberal views!
Who cares what Letterman says, he’s meaningless
No, mr Letterman, a dictatorship is what we had with #44.
Letterman , Typical SHITFORBRAINS !
Weren’t there many accusation about his sexual harassment of his staff
I think Letterman has slowly lost his mind!
Piece of garbage
Look in the mirror Jerk
You have now lost your mind! Cut that beard and act like a person with some brains!
Hey who let the Unabomber out. Wtf lol