sign, whatsoever, of dementia...note especially JB's off-script back and forth with Republicans voicing their objections...he handled them expertly and effectively...even with appropriate humor. Someone with dementia doesn't fall off a cliff that quickly a few months later. The explanation of fatigue is much more credible.
Now, in fairness...and Urgency, since he's our President...what say you about DJT's "MIT, Sharks & Batteries" Weaves?