I swear that has been something that, as an European person, left me quite speechless. We've heard a lot about Biden mental situation, but nothing about the other guy struggling as well
Trump has a rambling oratory style, but that is more of a stylistic affection.
The question isn't if he's better or worse than Biden, the question is if he's well enough for the presidency. And he's shown very clear signs of mental decline the last months.
Neither Trump nor Biden should have been chosen as candidates, yet all the focus has been on Biden.