He’s so dumb it defies logic.
Via Keith Koffler:
It spooks you a little when the commander in chief doesn’t seem to know much about military history, or the military itself. [...]
How do you, especially if you are running our armed forces, not recognize Khe Sanh and know how to pronounce it? Goodness, you need only have listened to Bruce Springsteen’s anti-America diatribe, “Born in the USA,” to have known how, since he mentions the Battle of Khe Sanh in the song.
Look at the veterans at the end of the video. They almost look like they’re scratching their heads. “Key-san? Like, ‘I left my keys on the counter?’”