"They have these terribly difficult questions like continue a sequence: 1, a, 2, b, 3, c... I'm such a genius I managed to solve 1/4 of it when most don't even take the test!"

He plays a lot of golf. Maybe he thinks a low score is better?

he forgot it was a dementia test as soon as he walked out

Actually it is a good idea to have some health/intelligence requirements for governmental roles.

Again!? Didn't he already do this during his last term? Or did he forget the whole "person, woman, man, camera, TV" bit? I guess if he has dementia it makes sense that he forgot now that I say it out loud.