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.

Far as I’m concerned Letterman is a piece of you-know-what. Messed around with someone that was working for him while he was on TV and it was okay because it was Letterman. Double standards for liberals Letterman Can Kiss my foot.
David WHO????
Mental health issues
Letterman is not the person I would ask to evaluate anyone.
Obama was trying to build the dictatorship. Where were the idiots during the n.
At least he had the ability to not sit on hid$#%&!@*
Am I the only one or does he appear unstable?
Letterman had a staff of joke writers that he would read. That makes him an expert in international affairs.
WHO?
Dave. Time for the. Home