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.

In your opinion.
Pure idiot, wonder what he’s been drinking these past years (Obama years) lol.
Clown! Stay retired and STFU!
Ok, Letterman! I went to high school and college with you! You were mediocre at best! Keep your ignorant remarks to yourself!
Obama is the dictator forcing trans gender on the American people and you better not slander Islam or else
Ummm, Obama was the one building the dictatorship! Wasn’t he the one who said with or without Congress he’s pushing through his agenda?
What memo$#%&!@*anyone can write a memo
Letterman… the real ignorant person! What an$#%&!@*!! He is a duly elected representative of Americans. Sorry your world of elitist don’t like that!!
Definition of bitter: Disagrees with me.
He should know about ignorance.