We're way past cognition.

dementia--especially in FTD (frontotemporal dementia) along with his gait and arm deficits on the right side of his body.

Likewise explains all those MRIs, his bruised hands (there is experimental intravenous immune therapy potentially available for FTD in clinical trial--but of course he'd merely demand FDA provide it), and the crude (yet readily administered) repeated cognitive tests, the frequent attempts at balancing lifts in his shoes (though given his lower limb venous occlusion, I've noted those aren't seen much lately), and on occasion, what seems to be additional bracing under his jacket and down one pants leg--beyond any Kevlar vest in public.

brought about by Tertiary Phase Syphilis. But that it is just me...

“You know, you don’t really realize how important the Coast Guard is until you have a hurricane,” before he went there, because of course he did.