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.

Idiot.
Asexual fiend with no talent please lecture us
Nasty old man!
He’s always been a jerk, now he can act anyway he wants , so he’s a big jerk
The father of late night malignancy. His open vitriol toward conservatives is well-known and documented.
Sorry I ever watch you.
No sir you are ignorant and irrelevant
Pray for him
Who among us has any interest at all in what celebrities think, say or do?
Another leaker