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.

No, David, but you just proved you are!!!
Dumbass
Idiot
STUPID,IGNORANT IDIOT FOOL.
Loser Dave
Letterman never was much good.
No, you, Letterman, are ignorant!!
PLEASE its been so nice your trap was shut go back to the DING BAT HOLE you flew out of SHUT THE F.>>>k up
TELL US WHAT YOU WOULD DIFFERENTLY… OR SHUT THE$#%&!@*UP!!!!!!!!!
Another liberal who thinks of himself smarter than the American people…Arrogant and self serving who likes to hear himself talk.