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.

Used to watch letterman all the time, until he became a very bitter man, it was hard to watch.
This comment from an ill bred ill mannered$#%&!@* Something about his show left me feeling disgusted … I quit watching …where is Leno..
& filling our government with Muslim Brotherhood
Letterman has been steadily approaching senility for a long, long time. Look like he’s arrived.
Dave…I really enjoyed you as a comedian, but I don’t give two shits about your personal opinion on matters of state. You have no room to point fingers at others.
Bye go count your money you Pompous Putz
Letterman needs to shut the hell up and go back into hiding again. Nobody cares what he thinks.
Trump may be ignorant about fine tuned politics but he’s learning fast remember my friends this wasn’t your carbon copy politician he’s a business man and that’s what we need right now.
Hey Letterman, stay retired
Letterman hasn’t been funny for 20 plus years…years ago I liked his show… sad.