It's amazing to me how some "smart people" (particularly on the left) seem to think that having different political views than they do, makes people dumb.
Personally, I prefer to reserve my accusations of stupidity and dumbness for those who have demonstrated their mastery of those skills time and time again, aka the Great Grand POTUS, meaning the potted plant we have in the oval office and his loyal side-kick, Word Salad Kommie.