I'm not saying this is what happened, but this IS how a person would act if they had another series of mini strokes a month before they were on the ballot for president.
Remember when he suddenly had a slurring voice on Elon Musk's interview? He also had canceled most of his rallies and such around then
In 2020, he denied having a series of mini strokes out of nowhere
Sept. 1, 2020
President Donald Trump posted a baffling tweet Tuesday declaring that he has not had a series of "mini-strokes" — and he had the White House physician release a statement backing up his claim.
[...]
No major media outlet appears to have reported in recent days that Trump had a series of mini-strokes.