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.

Irrelevant
Funny how people whose only accomplishment is “being funny and sarcastic” suddenly become leaders and know so much about how to run things.
Ol’Dave is gone ’round the bend…
Trump can’t be bought. Liberals can’t stand it!
Letterman is a has been !!! Trump is President !!!!!!!!!!
Stupid liberal!!
Bad person with sick ideas and no morals. !!
Barry Lee idiosyncratic behaviors die hard to live. Thank You for the laugh.
Never thought he was funny or even clever. He is a jerk.
David Letterman, back in the old days we had a saying, “opinions are like *ssholes, everyone has one.” Except you, you are an *sshole with an opinion. You are off TV now and nobody gives a damn what you think. Go do something important, go look in the mirror and watch your beard grow.