Like many older people, he probably is “low-info” to the extent that he just watches network news and CNN. Those media were able to portray President Trump as an ignorant “tyrant” day after day when he was one of the most patriotic American presidents we have ever had.
Even smart people can be swayed by pure propaganda. And like many smart people, if you proved without a doubt that they were wrong in their thinking, they’d never admit it (see my tagline).
FReegards.
But maybe he only watches CNN - I don't know. I have a “friend” who gets her news from CNN and I honestly think I can't be friends with her anymore - I can only take so much of her crap. For her “Trumper” is a derogatory term and she says it knowing I'm a Trump supporter. She had to gall to introduce me to some new people as “a Trump supporter”. See...I get pissed off even remembering it.